diff --git a/api.lua b/api.lua
index e0600b6..a279ddc 100644
--- a/api.lua
+++ b/api.lua
@@ -1,33 +1,33 @@
---FONTE: https://forum.minetest.net/viewtopic.php?pid=48124
+--FONTE: https://forum.core.net/viewtopic.php?pid=48124
 
 modMinerTrade.debug = function(text, playername)
 	if text ~= nil
 		and type(text) == "string"
 		and text ~= ""
 	then
-		if minetest.settings:get_bool("minertrade.debug") then
+		if core.settings:get_bool("minertrade.debug") then
 			if playername ~= nil
 				and type(playername) == "string"
 				and playername ~= ""
 			then
-				local player = minetest.get_player_by_name(playername)
+				local player = core.get_player_by_name(playername)
 				if player ~=nil and player:is_player() then
-					minetest.chat_send_player(
+					core.chat_send_player(
 						playername, text
 					)
-					minetest.log('action',"["..modMinerTrade.modName:upper()..":DEBUG:"..playername.."] "..text)
+					core.log('warning',"["..modMinerTrade.modName:upper()..":DEBUG:"..playername.."] "..text)
 				else
-					minetest.log('error',
+					core.log('error',
 						"["..modMinerTrade.modName:upper()..":DEBUG] "
 						..modSoundChat.translate(
 							"Unable to address debug for player '%s'."
 						):format(dump(playername))
 					)
-					minetest.log('action',"["..modMinerTrade.modName:upper()..":DEBUG] "..text)
+					core.log('warning',"["..modMinerTrade.modName:upper()..":DEBUG] "..text)
 				end
 			else
-				minetest.chat_send_all(text)
-				minetest.log('action',"["..modMinerTrade.modName:upper()..":DEBUG] "..text)
+				core.chat_send_all(text)
+				core.log('warning',"["..modMinerTrade.modName:upper()..":DEBUG] "..text)
 			end
 		end
 	end
@@ -43,17 +43,17 @@ modMinerTrade.getNodesInRange = function(pos, search_distance, nodenames)
 
 	local minp = {x=pos.x-search_distance,y=pos.y-search_distance, z=pos.z-search_distance}
 	local maxp = {x=pos.x+search_distance,y=pos.y+search_distance, z=pos.z+search_distance}
-	local nodes = minetest.find_nodes_in_area(minp, maxp, nodenames)
-	--local nodes = minetest.env:find_nodes_in_area(minp, maxp, nodenames) --deprecado
+	local nodes = core.find_nodes_in_area(minp, maxp, nodenames)
+	--local nodes = core.env:find_nodes_in_area(minp, maxp, nodenames) --deprecado
 	return #nodes
 end
 
 modMinerTrade.doSoundPlayer = function(playername, sfxFile, intDistace)
 	if intDistace == nil or (type(intDistace) == "number" and intDistace>= 0) then
 		if type(playername) == "string" and type(sfxFile) == "string" and playername ~= "" and sfxFile ~= "" then
-			local player = minetest.get_player_by_name(playername)
+			local player = core.get_player_by_name(playername)
 			if player ~=nil and player:is_player() then
-				return minetest.sound_play(sfxFile, {
+				return core.sound_play(sfxFile, {
 					object = player, --Se retirar esta linha tocará para todos. (Provavelmente ¬¬)
 					gain = 1.0, -- 1.0 = Volume total
 					max_hear_distance = intDistace,
@@ -66,9 +66,9 @@ end
 
 modMinerTrade.canInteract = function(meta, player)
 	if player:get_player_name() == meta:get_string("owner") 
-		or minetest.get_player_privs(player:get_player_name()).server
-		or minetest.get_player_privs(player:get_player_name()).checkchest
-		or (minetest.get_modpath("tradelands") and modTradeLands.canInteract(player:getpos(), player:get_player_name()))
+		or core.get_player_privs(player:get_player_name()).server
+		or core.get_player_privs(player:get_player_name()).checkchest
+		or (core.get_modpath("tradelands") and modTradeLands.canInteract(player:getpos(), player:get_player_name()))
 	then
 		return true
 	end
@@ -85,9 +85,9 @@ end
 
 modMinerTrade.getPosMachineName = function(posMachine)
 	if type(posMachine)=="table" and type(posMachine.x)=="number" and type(posMachine.y)=="number" and type(posMachine.z)=="number" then
-		return minetest.pos_to_string(modMinerTrade.floor_pos(posMachine))
+		return core.pos_to_string(modMinerTrade.floor_pos(posMachine))
 	else
-		minetest.log(
+		core.log(
 			"error",("[modMinerTrade.getPosMachineName(posMachine='%s')] "):format(dump(posMachine))
 			..modMinerTrade.translate("The '%s' parameter must be of the position type (x,y,z)!"):format("posMachine")
 		)
@@ -103,13 +103,13 @@ modMinerTrade.setMachineFlagsAlert = function (posMachine, value)
 		if type(value)=="number" and value>=0  then
 			modMinerTrade.machine_flags[posMachineName].lastalert = value
 		else
-			minetest.log(
+			core.log(
 				"error",("[modMinerTrade.setMachineFlagsAlert(posMachine='%s', value='%d')] "):format(dump(posMachine), dump(value))
 				..modMinerTrade.translate("The '%s' parameter must be of the non-empty string type!"):format("message")
 			)
 		end
 	else
-		minetest.log(
+		core.log(
 			"error",("[modMinerTrade.setMachineFlagsAlert(posMachine='%s', value='%s')] "):format(dump(posMachine), dump(dump))
 			..modMinerTrade.translate("The '%s' parameter must be of the position type (x,y,z)!"):format("posMachine")
 		)
@@ -124,7 +124,7 @@ modMinerTrade.getMachineFlagsAlert = function (posMachine)
 		if type(modMinerTrade.machine_flags[posMachineName].lastalert)~="number" or modMinerTrade.machine_flags[posMachineName].lastalert < 0 then modMinerTrade.machine_flags[posMachineName].lastalert = 0 end
 		return modMinerTrade.machine_flags[posMachineName].lastalert
 	else
-		minetest.log(
+		core.log(
 			"error",("[modMinerTrade.getMachineFlagsAlert(posMachine='%s', value='%s')] "):format(dump(posMachine), dump(dump))
 			..modMinerTrade.translate("The '%s' parameter must be of the position type (x,y,z)!"):format("posMachine")
 		)
@@ -132,10 +132,10 @@ modMinerTrade.getMachineFlagsAlert = function (posMachine)
 end
 
 modMinerTrade.sendMailMachine = function(posMachine, ownername, message)
-	if minetest.get_modpath("correio") then
+	if core.get_modpath("correio") then
 		local mailMachineInterval = (60*60)
 		if type(posMachine)=="table" and type(posMachine.x)=="number" and type(posMachine.y)=="number" and type(posMachine.z)=="number" then
-			if type(ownername)=="string" and ownername:trim()~="" and minetest.player_exists(ownername) then --Checks whether the owner really exists.
+			if type(ownername)=="string" and ownername:trim()~="" and core.player_exists(ownername) then --Checks whether the owner really exists.
 				if type(message)=="string" and message:trim()~="" then
 					local agora = os.time()
 					local macFlag = modMinerTrade.getMachineFlagsAlert(posMachine)
@@ -146,12 +146,12 @@ modMinerTrade.sendMailMachine = function(posMachine, ownername, message)
 							message:trim()
 						)
 						if carta~=nil then
-							minetest.log('action',
+							core.log('action',
 								modMinerTrade.translate("A letter was sent by the dispensing machine '%s' to '%s' advising about '%s'!"):
 								format(modMinerTrade.getPosMachineName(posMachine), ownername , message)
 							)
 						else
-							minetest.log(
+							core.log(
 								"error",("[modMinerTrade.sendMailMachine(posMachine='%s', ownername='%s', message='%s')] "):format(dump(posMachine), dump(ownername), dump(message))
 								..modMinerTrade.translate("Due to an unknown error, it was not possible to send an email through the dispensing machine!")
 							)
@@ -159,38 +159,38 @@ modMinerTrade.sendMailMachine = function(posMachine, ownername, message)
 						modMinerTrade.setMachineFlagsAlert(posMachine, agora)
 					end --if macFlag + mailMachineInterval < agora then
 				else
-					minetest.log(
+					core.log(
 						"error",("[modMinerTrade.sendMailMachine(posMachine='%s', ownername='%s', message='%s')] "):format(dump(posMachine), dump(ownername), dump(message))
 						..modMinerTrade.translate("The '%s' parameter must be of the non-empty string type!"):format("message")
 					)
 				end
 			else
-				minetest.log(
+				core.log(
 					"error",("[modMinerTrade.sendMailMachine(posMachine='%s', ownername='%s', message='%s')] "):format(dump(posMachine), dump(ownername), dump(message))
 					..modMinerTrade.translate("The '%s' parameter must be of the non-empty string type!"):format("ownername")
 				)
 			end
 		else
-			minetest.log(
+			core.log(
 				"error",("[modMinerTrade.sendMailMachine(posMachine='%s', ownername='%s', message='%s')] "):format(dump(posMachine), dump(ownername), dump(message))
 				..modMinerTrade.translate("The '%s' parameter must be of the position type (x,y,z)!"):format("posMachine")
 			)
 		end
-	end --if minetest.get_modpath("correio") then
+	end --if core.get_modpath("correio") then
 end
 
 modMinerTrade.errorDispensing = function(erroMessage, player, pos, ownername)
 	if type(erroMessage)=="string" and erroMessage:trim()~="" then
 		if player:is_player() then
 			local playername = player:get_player_name()
-			minetest.chat_send_player(playername, core.colorize("#00ff00", "["..modMinerTrade.translate("DISPENSING MACHINE").."]: ")..erroMessage)
-			minetest.sound_play("sfx_failure", {object=player, max_hear_distance=5.0,})
+			core.chat_send_player(playername, core.colorize("#00ff00", "["..modMinerTrade.translate("DISPENSING MACHINE").."]: ")..erroMessage)
+			core.sound_play("sfx_failure", {object=player, max_hear_distance=5.0,})
 		end
 		if type(pos)~="nil" and type(ownername)=="string" and ownername:trim()~="" then
 			modMinerTrade.sendMailMachine(pos, ownername, erroMessage)
 		end
 	else
-		minetest.log(
+		core.log(
 			"error",("[modMinerTrade.errorDispensing(erroMessage='%s', player, pos, ownername)] "):format(dump(erroMessage))
 			..modMinerTrade.translate("The '%s' parameter must be of the non-empty string type!"):format("erroMessage")
 		)
diff --git a/item_atm.lua b/item_atm.lua
index 34aba62..7c4a1b6 100644
--- a/item_atm.lua
+++ b/item_atm.lua
@@ -1,4 +1,4 @@
-minetest.register_privilege("developer",  {
+core.register_privilege("developer",  {
    description=modMinerTrade.translate("Can access evolving ATM functions."), 
    give_to_singleplayer=false,
 })
@@ -11,24 +11,24 @@ modMinerTrade.getUrlDatabase = function()
 	else
 		extension = ".tbl"
 	end
-	return minetest.get_worldpath().."/minertrade"..extension
+	return core.get_worldpath().."/minertrade"..extension
 end
 
 modMinerTrade.doBankSave = function()
 	--modMinerTrade.debug("modMinerTrade.doBankSave() >>> "..modMinerTrade.getUrlDatabase())
 	local file = io.open(modMinerTrade.getUrlDatabase(), "w")
 	if file then
-		local content = minetest.serialize(modMinerTrade.bank)
+		local content = core.serialize(modMinerTrade.bank)
 		--modMinerTrade.debug("modMinerTrade.doBankSave() >>> content = "..dump(content))
 		if modMinerTrade.save_compressed then
-			content = minetest.encode_base64(content)
+			content = core.encode_base64(content)
 		end
 		file:write(content)
 		file:close()
 		
-		minetest.log('action',"[MINERTRADE] "..modMinerTrade.translate("Saving data bank in the file '%s'!"):format(modMinerTrade.getUrlDatabase()))
+		core.log('action',"[MINERTRADE] "..modMinerTrade.translate("Saving data bank in the file '%s'!"):format(modMinerTrade.getUrlDatabase()))
 	else
-		minetest.log('error',"[MINERTRADE:ERRO] "..modMinerTrade.translate("The file '%s' is not in table format!"):format(modMinerTrade.getUrlDatabase()))
+		core.log('error',"[MINERTRADE:ERRO] "..modMinerTrade.translate("The file '%s' is not in table format!"):format(modMinerTrade.getUrlDatabase()))
 	end
 end
 
@@ -37,30 +37,30 @@ modMinerTrade.doBankLoad = function()
 	local file = io.open(modMinerTrade.getUrlDatabase(), "r")
 	if file then
 		if modMinerTrade.save_compressed then
-			modMinerTrade.bank = minetest.deserialize(minetest.decode_base64(file:read("*all")))
+			modMinerTrade.bank = core.deserialize(core.decode_base64(file:read("*all")))
 		else
-			modMinerTrade.bank = minetest.deserialize(file:read("*all"))
+			modMinerTrade.bank = core.deserialize(file:read("*all"))
 		end
 		--modMinerTrade.debug("modMinerTrade.doBankLoad() >>> modMinerTrade.bank = "..dump(modMinerTrade.bank))
 		file:close()
 		if not modMinerTrade.bank or type(modMinerTrade.bank) ~= "table" then
-			minetest.log('error',"[MINERTRADE:ERRO] "..modMinerTrade.translate("The file '%s' is not in table format!"):format(modMinerTrade.getUrlDatabase()))
+			core.log('error',"[MINERTRADE:ERRO] "..modMinerTrade.translate("The file '%s' is not in table format!"):format(modMinerTrade.getUrlDatabase()))
 			return { }
 		else
-			minetest.log('action',"[MINERTRADE] "..modMinerTrade.translate("Opening '%s' with data bank!"):format(modMinerTrade.getUrlDatabase()))
+			core.log('action',"[MINERTRADE] "..modMinerTrade.translate("Opening '%s' with data bank!"):format(modMinerTrade.getUrlDatabase()))
 		end
 	end
 end
 
 modMinerTrade.getDelayToUse = function()
 	if modMinerTrade.delay_to_use == nil then
-		modMinerTrade.delay_to_use = minetest.settings:get("minertrade.delay_to_use")
+		modMinerTrade.delay_to_use = core.settings:get("minertrade.delay_to_use")
 		if modMinerTrade.delay_to_use == nil 
 			or type(tonumber(modMinerTrade.delay_to_use)) ~= "number" 
 			or tonumber(modMinerTrade.delay_to_use) < 1
 		then
 			modMinerTrade.delay_to_use = 300 -- 300 = 5 minutes
-			minetest.settings:set("minertrade.delay_to_use", modMinerTrade.delay_to_use)
+			core.settings:set("minertrade.delay_to_use", modMinerTrade.delay_to_use)
 		end
 	end
 	return tonumber(modMinerTrade.delay_to_use)
@@ -68,7 +68,10 @@ end
 
 modMinerTrade.canInteract = function(playername)
 	--local clickername = clicker:get_player_name()
-	if minetest.get_player_privs(playername).mayor then
+	if core.get_player_privs(playername).mayor 
+	   or core.get_player_privs(playername).protection_bypass 
+	   or core.get_player_privs(playername).server 
+	then
 		return true
 	end
 	return false
@@ -120,14 +123,14 @@ modMinerTrade.addBalance = function(playername, value)
 end
 
 modMinerTrade.getMaxStatements = function() --MÁXIMO DE EXTRATOS ARMAZENADOS.
-	local maxStatements = minetest.settings:get("minertrade.bank.max_statements")
+	local maxStatements = core.settings:get("minertrade.bank.max_statements")
 	if maxStatements == nil 
 		or type(tonumber(maxStatements)) ~= "number" 
 		or tonumber(maxStatements) < 1 --Min
 		or tonumber(maxStatements) > 300 --Max
 	then
 		maxStatements = 30
-		minetest.settings:set("minertrade.bank.max_statements", tostring(maxStatements))
+		core.settings:set("minertrade.bank.max_statements", tostring(maxStatements))
 	end
 	return tonumber(maxStatements)
 end
@@ -182,7 +185,7 @@ end
 
 modMinerTrade.getSalt_Hash = function()
 	if modMinerTrade.bank.salt_hash == nil then
-		modMinerTrade.bank.salt_hash = minetest.encode_base64("SALT_HASH: "..os.date("%Y-%B-%d %Hh:%Mm:%Ss"))
+		modMinerTrade.bank.salt_hash = core.encode_base64("SALT_HASH: "..os.date("%Y-%B-%d %Hh:%Mm:%Ss"))
 	end
 	return modMinerTrade.bank.salt_hash
 end
@@ -191,7 +194,7 @@ modMinerTrade.addTransferProof_v2 = function(player, accountname, txtBeneficiary
 	local playername = player:get_player_name()
 	local when = os.date("%Y-%B-%d %Hh:%Mm:%Ss")
 	local title = modMinerTrade.translate("TRANSFER PROOF")
-	local itemDescription = minetest.colorize("#00FF00", title)
+	local itemDescription = core.colorize("#00FF00", title)
 		.."\n"..modMinerTrade.translate("Reason: %s"):format(
 			txtReason:sub(1, modMinerTrade.paperprinted.max_title_size)
 		)
@@ -205,9 +208,9 @@ modMinerTrade.addTransferProof_v2 = function(player, accountname, txtBeneficiary
 		.."\n"..modMinerTrade.translate("Value")..": "..("%02d"):format(tonumber(txtValue)).." minercash"
 		.."\n"..modMinerTrade.translate("Transfer Reason")..": "..txtReason
 	
-	local Auth = minetest.get_password_hash(
+	local Auth = core.get_password_hash(
 		modMinerTrade.getSalt_Hash(), 
-		minetest.encode_base64(docData:trim())
+		core.encode_base64(docData:trim())
 	)
 	
 	local htmlBody = [[
@@ -229,12 +232,12 @@ modMinerTrade.addTransferProof_v2 = function(player, accountname, txtBeneficiary
 </center>
 ]]
 	--[[  ]]
-	htmlBody = htmlBody:gsub('<minetest_bank/>', minetest.formspec_escape(modMinerTrade.translate("MINETEST BANK")))
-	htmlBody = htmlBody:gsub('AUTHENTICATION HASH', minetest.formspec_escape(modMinerTrade.translate("AUTHENTICATION HASH")))
-	htmlBody = htmlBody:gsub('<exit_message/>', minetest.formspec_escape(modMinerTrade.translate("Press <b>ESC</b> to exit this screen!")))
-	htmlBody = htmlBody:gsub('<transfer_proof/>', minetest.formspec_escape(title))
-	htmlBody = htmlBody:gsub('<doc_data/>', minetest.formspec_escape(docData))
-	htmlBody = htmlBody:gsub('<transfer_auth/>', minetest.formspec_escape(Auth))
+	htmlBody = htmlBody:gsub('<minetest_bank/>', core.formspec_escape(modMinerTrade.translate("MINETEST BANK")))
+	htmlBody = htmlBody:gsub('AUTHENTICATION HASH', core.formspec_escape(modMinerTrade.translate("AUTHENTICATION HASH")))
+	htmlBody = htmlBody:gsub('<exit_message/>', core.formspec_escape(modMinerTrade.translate("Press <b>ESC</b> to exit this screen!")))
+	htmlBody = htmlBody:gsub('<transfer_proof/>', core.formspec_escape(title))
+	htmlBody = htmlBody:gsub('<doc_data/>', core.formspec_escape(docData))
+	htmlBody = htmlBody:gsub('<transfer_auth/>', core.formspec_escape(Auth))
 	--]]
 	
 	modMinerTrade.addPaperPrinted(player, itemDescription, htmlBody)
@@ -247,13 +250,13 @@ modMinerTrade.addTransferProof_v1 = function(player, accountname, txtBeneficiary
 	local invPlayer = player:get_inventory()
 	if invPlayer:room_for_item("main", objProof) then-- verifica se compartimento de Recebimento de pagamento do vendedor tem espaço
 		invPlayer:add_item("main", objProof)
-		minetest.chat_send_player(playername, 
+		core.chat_send_player(playername, 
 			core.colorize("#00FF00", "["..modMinerTrade.translate("ATM").."]: ")
 			..modMinerTrade.translate("Transfer successful!")
 		)
 	else
-		minetest.add_item(player:get_pos(), objProof)
-		minetest.chat_send_player(playername, 
+		core.add_item(player:get_pos(), objProof)
+		core.chat_send_player(playername, 
 			core.colorize("#00FF00", "["..modMinerTrade.translate("ATM").."]: ")
 			..core.colorize("#FF0000", 
 				modMinerTrade.translate("The Transfer Proof was left on the floor because '%s' inventory has no free space."):format(playername)
@@ -263,7 +266,7 @@ modMinerTrade.addTransferProof_v1 = function(player, accountname, txtBeneficiary
 end
 
 modMinerTrade.getProofStack = function(playername, accountname, txtBeneficiary, txtValue, txtReason)
-	local player = minetest.get_player_by_name(playername)
+	local player = core.get_player_by_name(playername)
 	if player ~= nil and player:is_player() then
 		local lpp = 14 -- Lines per book's page
 		local max_text_size = 10000
@@ -289,9 +292,9 @@ modMinerTrade.getProofStack = function(playername, accountname, txtBeneficiary,
 		.."\n"..modMinerTrade.translate("Value")..": "..txtValue.." minercash"
 		.."\n"..modMinerTrade.translate("Transfer Reason")..": "..txtReason
 		
-		local Auth = minetest.get_password_hash(
+		local Auth = core.get_password_hash(
 			modMinerTrade.getSalt_Hash(), 
-			minetest.encode_base64(myDocument:trim())
+			core.encode_base64(myDocument:trim())
 		)
 		data.text = ""
 		.."\n"..myDocument:trim()
@@ -371,50 +374,50 @@ modMinerTrade.showAccountBank = {
 			
 			--.."background[5.0,-0.25;10,10;default_steel_block.png^text_atm_front.png]"
 			..        "box[0.00,0.10;5.50,9.5;#000000]"
-			..     "button[0.25,0.50;5.00,0.5;btnBalance;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BALANCE"))).."]"
-			..     "button[0.25,1.25;5.00,0.5;btnStatement;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("STATEMENT"))).."]"
+			..     "button[0.25,0.50;5.00,0.5;btnBalance;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BALANCE"))).."]"
+			..     "button[0.25,1.25;5.00,0.5;btnStatement;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("STATEMENT"))).."]"
 		if type(accountmode) == "string" and ( --Aacesso público à contas públicas não tem transferência.
 		      accountmode == "atm"
 		      or accountmode == "online"
 		      or (
 		         accountmode == "public_access" and (
-      		      minetest.get_player_privs(playername).mayor
-      		      or (minetest.global_exists("modEUrn") and modEUrn.getPresidentName()==playername)
+      		      core.get_player_privs(playername).mayor
+      		      or (core.global_exists("modEUrn") and modEUrn.getPresidentName()==playername)
       		   )
    		   )
 		   )
 		then
 			formspec = formspec
-			   ..     "button[0.25,3.50;5.00,0.5;btnTransfers;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("TRANSFERS"))).."]"
+			   ..     "button[0.25,3.50;5.00,0.5;btnTransfers;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("TRANSFERS"))).."]"
 		end
 		if type(accountmode) == "string" and (accountmode == "atm" or accountmode == "public_access") then
 			formspec = formspec
-				..     "button[0.25,2.00;5.00,0.5;btnDeposits;"..minetest.formspec_escape(core.colorize("#FFFFF", modMinerTrade.translate("DEPOSITS"))).."]"
+				..     "button[0.25,2.00;5.00,0.5;btnDeposits;"..core.formspec_escape(core.colorize("#FFFFF", modMinerTrade.translate("DEPOSITS"))).."]"
 		end
 		if type(accountmode) == "string" and accountmode == "atm" 
 		then
 			formspec = formspec
-				..     "button[0.25,2.75;5.00,0.5;btnWithdrawals;"..minetest.formspec_escape(core.colorize("#FFFFF", modMinerTrade.translate("WITHDRAWALS"))).."]" -- [DINHEIRO E CHECK]
+				..     "button[0.25,2.75;5.00,0.5;btnWithdrawals;"..core.formspec_escape(core.colorize("#FFFFF", modMinerTrade.translate("WITHDRAWALS"))).."]" -- [DINHEIRO E CHECK]
 		end
-		if minetest.get_player_privs(playername).developer then
+		if core.get_player_privs(playername).developer then
 			formspec = formspec
-				..     "button[0.25,5.00;5.00,0.5;btnCreditCard;"..minetest.formspec_escape(core.colorize("#888888", modMinerTrade.translate("CREDIT CARD"))).."]" -- [EXPEDIR E MUDAR SENHA]
-				..     "button[0.25,4.25;5.00,0.5;btnLoans;"..minetest.formspec_escape(core.colorize("#888888", modMinerTrade.translate("LOANS"))).."]" --Emprestimos
-				..     "button[0.25,5.75;5.00,0.5;btnLottery;"..minetest.formspec_escape(core.colorize("#888888", modMinerTrade.translate("LOTTERY"))).."]" --Lotérica
-				..     "button[0.25,6.50;5.00,0.5;btnSetings;"..minetest.formspec_escape(core.colorize("#888888", modMinerTrade.translate("SETTINGS"))).."]" --Se quer ou não uma senha, se quer receber uma carta quando houver uma nova movimentacao.
+				..     "button[0.25,5.00;5.00,0.5;btnCreditCard;"..core.formspec_escape(core.colorize("#888888", modMinerTrade.translate("CREDIT CARD"))).."]" -- [EXPEDIR E MUDAR SENHA]
+				..     "button[0.25,4.25;5.00,0.5;btnLoans;"..core.formspec_escape(core.colorize("#888888", modMinerTrade.translate("LOANS"))).."]" --Emprestimos
+				..     "button[0.25,5.75;5.00,0.5;btnLottery;"..core.formspec_escape(core.colorize("#888888", modMinerTrade.translate("LOTTERY"))).."]" --Lotérica
+				..     "button[0.25,6.50;5.00,0.5;btnSetings;"..core.formspec_escape(core.colorize("#888888", modMinerTrade.translate("SETTINGS"))).."]" --Se quer ou não uma senha, se quer receber uma carta quando houver uma nova movimentacao.
 		end
 		if type(accountmode) == "string" and accountmode ~= "public_access" 
 		   
 		then
 		   formspec = formspec
-			   .."button[0.25,6.50;5.00,0.5;btnPublicAccess;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("THE GOVERNMENT"))).."]"
+			   .."button[0.25,6.50;5.00,0.5;btnPublicAccess;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("THE GOVERNMENT"))).."]"
 		end
 		formspec = formspec
-			.."button_exit[0.25,7.25;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+			.."button_exit[0.25,7.25;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 			
 			--..     "box[6.0,0.25;9.5,9.5;#000000]"
 			.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
-		minetest.show_formspec(playername, "frmAtmMain", formspec)
+		core.show_formspec(playername, "frmAtmMain", formspec)
 	end,
 	frmBalance = function(playername) --FORMULÁRIO: SALDO
 		local accountname = modMinerTrade.bank.player[playername].focused_accountname
@@ -439,22 +442,22 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		..       "box[6.0,0.25;9.5,9.5;#00000088]"
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		
-		..  "textarea[6.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("NAME OF BANKING ACCOUNT HOLDER")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", accountname:upper())).."]"
+		..  "textarea[6.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("NAME OF BANKING ACCOUNT HOLDER")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", accountname:upper())).."]"
 		
-		..  "textarea[6.75,2.50;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("ACCOUNT CREATED")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", account_created)).."]"
+		..  "textarea[6.75,2.50;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("ACCOUNT CREATED")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", account_created)).."]"
 		
-		..  "textarea[6.75,4.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("FINANCIAL TRANSACTIONS")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", ("%02d"):format(totalTransactions).." transactions.")).."]"
+		..  "textarea[6.75,4.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("FINANCIAL TRANSACTIONS")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", ("%02d"):format(totalTransactions).." transactions.")).."]"
 		
-		..  "textarea[6.75,5.50;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
+		..  "textarea[6.75,5.50;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
 		
 		modMinerTrade.doSoundPlayer(playername, "sfx_atm", 5)
-		minetest.show_formspec(
+		core.show_formspec(
 			playername, 
 			"frmAtmBalance", 
 			formspec
@@ -471,12 +474,12 @@ modMinerTrade.showAccountBank = {
 		
 		--.."bgcolor[#636D76FF;false]"
 		--.."background[-0.25,-0.25;10,11;safe_inside.png]"
-		--.."button[0,0.0;4,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		--.."button_exit[0,3.0;4,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		--.."button[0,0.0;4,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		--.."button_exit[0,3.0;4,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		..       "box[6.0,0.25;9.5,9.5;#00000088]"
 		--.."background[5.0,0.25;9.5,9.5;text_atm_front.png]"
@@ -485,9 +488,9 @@ modMinerTrade.showAccountBank = {
 		local isAccount = modMinerTrade.isExistAcount(accountname)
 		if isAccount then
 			formspec = formspec
-			..   "label[6.25,0.50;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("STATEMENT")..":")).."]"
-			--..   "label[5.25,2.50;"..minetest.formspec_escape(core.colorize("#00FFFF", msgStatement)).."]"
-			--"textarea[5.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("STATEMENT")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgStatement)).."]"
+			..   "label[6.25,0.50;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("STATEMENT")..":")).."]"
+			--..   "label[5.25,2.50;"..core.formspec_escape(core.colorize("#00FFFF", msgStatement)).."]"
+			--"textarea[5.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("STATEMENT")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgStatement)).."]"
 			
 			local listStatement = modMinerTrade.getStatement(accountname)
 			local plusStatement = "#888,"..modMinerTrade.translate("N°")..","..modMinerTrade.translate("WHEN")..","..modMinerTrade.translate("VALUE")
@@ -500,9 +503,9 @@ modMinerTrade.showAccountBank = {
 				--local line = oneStatement.when.." | "..sign..oneStatement.value.." minercash."
 				local line = "#FFF,"
 					..(("%03d"):format(i))..","
-					..minetest.formspec_escape(oneStatement.when)
+					..core.formspec_escape(oneStatement.when)
 					..","
-					..minetest.formspec_escape(sign..("%02d"):format(oneStatement.value).." MT$.")
+					..core.formspec_escape(sign..("%02d"):format(oneStatement.value).." MT$.")
 				if plusStatement == "" then
 					plusStatement = line
 				else
@@ -517,9 +520,9 @@ modMinerTrade.showAccountBank = {
 					sign = "+"
 				end
 				plusStatement = plusStatement..",#FFFF00,,"
-				--..minetest.formspec_escape(os.date("%Y-%B-%d %Hh:%Mm:%Ss"))
-				..minetest.formspec_escape(modMinerTrade.translate("TOTAL")..": ")
-				..minetest.formspec_escape(sign..("%02d"):format(value).." minercash.")
+				--..core.formspec_escape(os.date("%Y-%B-%d %Hh:%Mm:%Ss"))
+				..core.formspec_escape(modMinerTrade.translate("TOTAL")..": ")
+				..core.formspec_escape(sign..("%02d"):format(value).." minercash.")
 				..","
 			end
 			--]]
@@ -541,13 +544,13 @@ modMinerTrade.showAccountBank = {
 		end
 
 		formspec = formspec
-		.."textarea[6.75,8.50;9.0,1.5;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("TRANSACTION DETAILS")..":"))..";"
-			..minetest.formspec_escape(core.colorize("#00FFFF", msgStatement))
+		.."textarea[6.75,8.50;9.0,1.5;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("TRANSACTION DETAILS")..":"))..";"
+			..core.formspec_escape(core.colorize("#00FFFF", msgStatement))
 		.."]"
 		
 		
 		
-		minetest.show_formspec(
+		core.show_formspec(
 			playername, 
 			"frmAtmStatement", 
 			formspec
@@ -563,27 +566,27 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		..       "box[6.0,0.25;9.5,9.5;#000000CC]"
 		
-		..   "label[6.75,0.75;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("SELECT BANK WITHDRAWAL METHOD")..":")).."]"
-		--..  "textarea[5.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
-		--..  "button[6.25,1.50;1.00,1.00;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		..   "label[6.75,0.75;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("SELECT BANK WITHDRAWAL METHOD")..":")).."]"
+		--..  "textarea[5.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
+		--..  "button[6.25,1.50;1.00,1.00;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
 		--.."style_type[image_button;bgcolor=#00000000;border=false]"
 		--.."style[btnMinercoin;bgimg=sbl_save.png;bgimg_hovered=sbl_save_pressed.png;bgimg_pressed=sbl_save_pressed.png;border=false]"
-		..   "label[9.25,3.25;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("MINERCASH"))).."]"
-		.."tooltip[btnMinercoin;"..minetest.formspec_escape(modMinerTrade.translate("Withdrawals in minercash."))..";#CCCC0088;#000000]"
+		..   "label[9.25,3.25;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("MINERCASH"))).."]"
+		.."tooltip[btnMinercoin;"..core.formspec_escape(modMinerTrade.translate("Withdrawals in minercash."))..";#CCCC0088;#000000]"
 		.."image_button[7.25,2.50;2.00,2.00;obj_minercoin.png;btnGiveCash;]"
 		
-		..   "label[9.25,5.75;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BANK CHECK"))).."]"
-		.."tooltip[btnMinercoin;"..minetest.formspec_escape(modMinerTrade.translate("Withdrawals in bank check."))..";#CCCC0088;#000000]"
+		..   "label[9.25,5.75;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BANK CHECK"))).."]"
+		.."tooltip[btnMinercoin;"..core.formspec_escape(modMinerTrade.translate("Withdrawals in bank check."))..";#CCCC0088;#000000]"
 		.."image_button[7.25,5.00;2.00,2.00;obj_bank_check.png;btnGiveCheck;]"
 		
 		modMinerTrade.doSoundPlayer(playername, "sfx_atm", 5)
-		minetest.show_formspec(playername, "frmAtmWithdrawals", formspec)
+		core.show_formspec(playername, "frmAtmWithdrawals", formspec)
 	end,
 	frmGiveCash = function(playername, txtValue, msgDetails) --FORMULÁRIO: SAQUE EM DINHEIRO
 		local accountname = modMinerTrade.bank.player[playername].focused_accountname
@@ -603,13 +606,13 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnWithdrawals;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnWithdrawals;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		..       "box[6.0,0.25;9.5,9.5;#000000CC]"
 		
-		..  "textarea[6.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
+		..  "textarea[6.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
 		
 		if modMinerTrade.isExistAcount(accountname) then
 			if txtValue == nil or txtValue == "" then
@@ -619,28 +622,28 @@ modMinerTrade.showAccountBank = {
 				msgDetails = modMinerTrade.translate("Write the value that want to withdrawal!")
 			end
 			formspec = formspec
-			--..   "label[5.25,0.50;"..minetest.formspec_escape(core.colorize("#00FFFF", "WITHDRAWAL IN MINERCASH:")).."]"
+			--..   "label[5.25,0.50;"..core.formspec_escape(core.colorize("#00FFFF", "WITHDRAWAL IN MINERCASH:")).."]"
 			.."field[7.00,3.50;3.00,0.50;txtValue;"
-				..minetest.formspec_escape(
+				..core.formspec_escape(
 					core.colorize(
 						"#00FFFF", 
 						modMinerTrade.translate("VALUE")..":"
 					)
 				)..";"
-				..minetest.formspec_escape(txtValue)
+				..core.formspec_escape(txtValue)
 			.."]"
-			..  "button[9.85,3.00;4.00,1.00;btnAtmGive;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("WITHDRAWAL"))).."]"
+			..  "button[9.85,3.00;4.00,1.00;btnAtmGive;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("WITHDRAWAL"))).."]"
 	
-			.."textarea[6.75,8.50;9.0,1.5;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("DETAILS")..":"))..";"
-				..minetest.formspec_escape(core.colorize("#00FFFF", msgDetails))
+			.."textarea[6.75,8.50;9.0,1.5;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("DETAILS")..":"))..";"
+				..core.formspec_escape(core.colorize("#00FFFF", msgDetails))
 			.."]"
 		end
-		minetest.show_formspec(playername, "frmAtmGiveCash", formspec)
+		core.show_formspec(playername, "frmAtmGiveCash", formspec)
 	end,
 	frmDeposits = function(playername) --FORMULÁRIO: DEPÓSITOS
 		local accountname = modMinerTrade.bank.player[playername].focused_accountname
 		-- playername = player:get_player_name()
-		local newInv = minetest.create_detached_inventory("deposits_"..playername, { 
+		local newInv = core.create_detached_inventory("deposits_"..playername, { 
 	
 			-- Called when a player wants to move items inside the inventory
 			allow_move = function(inv, from_list, from_index, to_list, to_index, count, player) 
@@ -670,11 +673,11 @@ modMinerTrade.showAccountBank = {
 			-- Called after the actual action has happened, according to what was allowed.
 			on_move = function(inv, from_list, from_index, to_list, to_index, count, player) 
 				--modMinerTrade.setSafeInventory(playername, inv:get_list("safe"))
-				--minetest.log('action',playername.." colocou "..stack:get_count().." '"..stack:get_name().."' em seu cofre!")
+				--core.log('action',playername.." colocou "..stack:get_count().." '"..stack:get_name().."' em seu cofre!")
 			end,
 			on_put = function(inv, listname, index, stack, player) 
 				--modMinerTrade.setSafeInventory(playername, inv:get_list("safe"))
-				--minetest.log('action',modMinerTrade.translate("Player '%s' has placed %02d '%s' in his safe!"):format(playername, stack:get_count(), stack:get_name()))
+				--core.log('action',modMinerTrade.translate("Player '%s' has placed %02d '%s' in his safe!"):format(playername, stack:get_count(), stack:get_name()))
 				--local accountname = player:get_player_name()
 				if modMinerTrade.checkValidStack(stack) >= 1 then
 					local stackValue = modMinerTrade.getValueStack(stack)
@@ -697,7 +700,7 @@ modMinerTrade.showAccountBank = {
 			end,
 			on_take = function(inv, listname, index, stack, player) 
 				--modMinerTrade.setSafeInventory(playername, inv:get_list("safe"))
-				--minetest.log('action',modMinerTrade.translate("Player '%s' has removed %02d '%s' in his safe!"):format(playername, stack:get_count(), stack:get_name()))
+				--core.log('action',modMinerTrade.translate("Player '%s' has removed %02d '%s' in his safe!"):format(playername, stack:get_count(), stack:get_name()))
 			end,
 			
 		})
@@ -720,35 +723,35 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		..       "box[6.0,0.25;9.5,9.5;#000000AA]"
 		
-		..   "label[6.50,0.50;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BANK DEPOSIT") )).."]"
-		--..  "textarea[5.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
+		..   "label[6.50,0.50;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BANK DEPOSIT") )).."]"
+		--..  "textarea[5.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
 		
 		..     "box[6.5,1.50;8.5,1.05;#00FF0044]"
 		.."textarea[7.25,2.00;9.0,2.0;;"
-			..minetest.formspec_escape(core.colorize("#FFFF00", modMinerTrade.translate("YOUR BALANCE")..":"))..";"
-			..minetest.formspec_escape(core.colorize("#FFFFFF", minetest.formspec_escape(msgBalance)))
+			..core.formspec_escape(core.colorize("#FFFF00", modMinerTrade.translate("YOUR BALANCE")..":"))..";"
+			..core.formspec_escape(core.colorize("#FFFFFF", core.formspec_escape(msgBalance)))
 		.."]"
 		
 		--listcolors[slot_bg_normal;slot_bg_hover;slot_border;tooltip_bgcolor;tooltip_fontcolor]
 		.."listcolors[#88888866;#666666;#CCCCCC;#444444;#FFFFFF]"
 
-		.."label[7.00,3.00;"..minetest.formspec_escape(modMinerTrade.translate("ATM entrance"))..":]"
+		.."label[7.00,3.00;"..core.formspec_escape(modMinerTrade.translate("ATM entrance"))..":]"
 		.."image[9.00,3.35;2,2;obj_minercoin.png]"
 		.."image[10.50,3.75;1,1;gui_arrow.png^[transformR270]"
-		.."list[detached:"..minetest.formspec_escape("deposits_"..playername)..";deposit;11.50,3.75;1,1;]"
+		.."list[detached:"..core.formspec_escape("deposits_"..playername)..";deposit;11.50,3.75;1,1;]"
 
-		--.."button[3,2.0;2,1;exchange;"..minetest.formspec_escape(modMinerTrade.translate("DEPOSIT")).."]"
+		--.."button[3,2.0;2,1;exchange;"..core.formspec_escape(modMinerTrade.translate("DEPOSIT")).."]"
 
-		.."label[7.00,5.00;"..minetest.formspec_escape(modMinerTrade.translate("Your Inventory"))..":]"
+		.."label[7.00,5.00;"..core.formspec_escape(modMinerTrade.translate("Your Inventory"))..":]"
 		.."list[current_player;main;7.00,5.50;8,4;]"
 
-		minetest.show_formspec(playername, "frmAtmDeposits", formspec)
+		core.show_formspec(playername, "frmAtmDeposits", formspec)
 	end,
 	frmTransfer = function(playername) --FORMULÁRIO: TRANSFERÊNCIAS
 		local accountname = modMinerTrade.bank.player[playername].focused_accountname
@@ -768,13 +771,13 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		..       "box[6.0,0.25;9.5,9.5;#000000CC]"
 		
-		..  "textarea[6.75,1.00;9.0,9.0;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..minetest.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
+		..  "textarea[6.75,1.00;9.0,9.0;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("BALANCES")..":"))..";"..core.formspec_escape(core.colorize("#00FFFF", msgBalance)).."]"
 		
 		if modMinerTrade.isExistAcount(accountname) then
 			if txtBeneficiary == nil or type(txtBeneficiary) ~= "string" then
@@ -790,41 +793,41 @@ modMinerTrade.showAccountBank = {
 				msgDetails = modMinerTrade.translate("Write the 'beneficiary player name' and the 'value in minercash' that want to transfer!")
 			end
 			formspec = formspec
-			--..   "label[5.25,0.50;"..minetest.formspec_escape(core.colorize("#00FFFF", "WITHDRAWAL IN MINERCASH:")).."]"
+			--..   "label[5.25,0.50;"..core.formspec_escape(core.colorize("#00FFFF", "WITHDRAWAL IN MINERCASH:")).."]"
 			.."field[7.00,3.50;6.00,0.50;txtBeneficiary;"
-				..minetest.formspec_escape(
+				..core.formspec_escape(
 					core.colorize(
 						"#00FFFF", 
 						modMinerTrade.translate("BENEFICIARY NAME")..":"
 					)
 				)..";"
-				..minetest.formspec_escape(txtBeneficiary)
+				..core.formspec_escape(txtBeneficiary)
 			.."]"
 			.."field[7.00,5.00;3.00,0.50;txtValue;"
-				..minetest.formspec_escape(
+				..core.formspec_escape(
 					core.colorize(
 						"#00FFFF", 
 						modMinerTrade.translate("VALUE")..":"
 					)
 				)..";"
-				..minetest.formspec_escape(txtValue)
+				..core.formspec_escape(txtValue)
 			.."]"
 			.."field[7.00,6.50;9.00,0.50;txtReason;"
-				..minetest.formspec_escape(
+				..core.formspec_escape(
 					core.colorize(
 						"#00FFFF", 
 						modMinerTrade.translate("REASON OF TRANSFER")..":"
 					)
 				)..";"
-				..minetest.formspec_escape(txtReason)
+				..core.formspec_escape(txtReason)
 			.."]"
-			..  "button[9.85,7.50;4.00,1.00;btnAtmTransfer;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("DO TRANSFER"))).."]"
+			..  "button[9.85,7.50;4.00,1.00;btnAtmTransfer;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("DO TRANSFER"))).."]"
 	
-			.."textarea[6.75,8.50;9.0,1.5;;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("DETAILS")..":"))..";"
-				..minetest.formspec_escape(core.colorize("#00FFFF", msgDetails))
+			.."textarea[6.75,8.50;9.0,1.5;;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("DETAILS")..":"))..";"
+				..core.formspec_escape(core.colorize("#00FFFF", msgDetails))
 			.."]"
 		end
-		minetest.show_formspec(playername, "frmAtmTransfer", formspec)
+		core.show_formspec(playername, "frmAtmTransfer", formspec)
 	end,
 	frmLoanFunctions = function(playername) --FORMULÁRIO: FUNÇÕES DE EMPRESTIMO
 		local accountname = modMinerTrade.bank.player[playername].focused_accountname
@@ -836,28 +839,28 @@ modMinerTrade.showAccountBank = {
 		--..default.gui_slots
 		
 		..        "box[0.00,0.10;5.50,9.5;#000000]"
-		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
-		.."button_exit[0.25,6.50;5.00,0.5;;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
+		..     "button[0.25,0.50;5.00,0.5;btnAtmMain;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("BACK"))).."]"
+		.."button_exit[0.25,6.50;5.00,0.5;;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("EXIT"))).."]"
 		
 		.."background[6.0,0.25;9.5,9.5;text_atm_front.png]"
 		..       "box[6.0,0.25;9.5,9.5;#000000CC]"
 		
-		..   "label[6.75,0.75;"..minetest.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("LOAN FUNCTIONS")..":")).."]"
+		..   "label[6.75,0.75;"..core.formspec_escape(core.colorize("#00FFFF", modMinerTrade.translate("LOAN FUNCTIONS")..":")).."]"
 
-		..   "label[9.25,3.25;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("NEW LOANS AVAILABLE"))).."]"
-		.."tooltip[btnMinercoin;"..minetest.formspec_escape(modMinerTrade.translate("List of all loan offers that you can take advantage of at low cost."))..";#CCCC0088;#000000]"
+		..   "label[9.25,3.25;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("NEW LOANS AVAILABLE"))).."]"
+		.."tooltip[btnMinercoin;"..core.formspec_escape(modMinerTrade.translate("List of all loan offers that you can take advantage of at low cost."))..";#CCCC0088;#000000]"
 		.."image_button[7.25,2.50;2.00,2.00;obj_moneysuitcase.png;btnLoansAvailable;]"
 
-		..   "label[9.25,5.75;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("LOANS WITH PENDING RETURNS"))).."]"
-		.."tooltip[btnMinercoin;"..minetest.formspec_escape(modMinerTrade.translate("List of all loans you have taken and that are still pending repayment."))..";#CCCC0088;#000000]"
+		..   "label[9.25,5.75;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("LOANS WITH PENDING RETURNS"))).."]"
+		.."tooltip[btnMinercoin;"..core.formspec_escape(modMinerTrade.translate("List of all loans you have taken and that are still pending repayment."))..";#CCCC0088;#000000]"
 		.."image_button[7.25,5.00;2.00,2.00;obj_credit_card.png;btnLoansPendingReturns;]"
 
-		..   "label[9.25,8.25;"..minetest.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("RULES FOR LOANS"))).."]"
-		.."tooltip[btnMinercoin;"..minetest.formspec_escape(modMinerTrade.translate("List of all rules for you to have access to a loan."))..";#CCCC0088;#000000]"
+		..   "label[9.25,8.25;"..core.formspec_escape(core.colorize("#FFFFFF", modMinerTrade.translate("RULES FOR LOANS"))).."]"
+		.."tooltip[btnMinercoin;"..core.formspec_escape(modMinerTrade.translate("List of all rules for you to have access to a loan."))..";#CCCC0088;#000000]"
 		.."image_button[7.25,7.50;2.00,2.00;obj_bank_check.png;btnLoansRules;]"
 		
 		modMinerTrade.doSoundPlayer(playername, "sfx_atm", 5)
-		minetest.show_formspec(playername, "frmAtmLoanFunctions", formspec)
+		core.show_formspec(playername, "frmAtmLoanFunctions", formspec)
 	end,
 }
 
@@ -903,8 +906,8 @@ end
 
 modMinerTrade.delDetachedInventory = function(playername)
    --core.detached_inventories["safe_"..ownername] = nil	
-   return minetest.remove_detached_inventory("deposits_"..playername)
-   --return minetest.remove_detached_inventory_raw("safe_"..ownername)
+   return core.remove_detached_inventory("deposits_"..playername)
+   --return core.remove_detached_inventory_raw("safe_"..ownername)
 end
 
 
@@ -917,8 +920,8 @@ modMinerTrade.onReceiveFields = function(player, formname, fields)
 	elseif fields.quit then
 		--são funções importantíssimas para não perder inventário do jogador e nem calça legging no servidor.
 		modMinerTrade.doBankSave()
-		local isDeleted = modMinerTrade.delDetachedInventory(playername)
-		modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> Database saved and delete detached inventory... Done ["..dump(isDeleted).."]")
+		--local isDeleted = modMinerTrade.delDetachedInventory(playername)
+		--modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> Database saved and delete detached inventory... Done ["..dump(isDeleted).."]")
 	else
 		if formname == "frmAtmMain"  then
 			if fields.btnBalance ~= nil then
@@ -941,10 +944,11 @@ modMinerTrade.onReceiveFields = function(player, formname, fields)
 				modMinerTrade.showAccountBank.inPublicAccess(playername)
 			end
 		elseif formname == "frmAtmStatement"  then
-			--modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> player = "..playername.." | formname = "..formname.." | fields = "..dump(fields))
+			modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> player = "..playername.." | formname = "..formname.." | fields = "..dump(fields))
 			if fields.fldStatement ~= nil then
 				local tblStatement = modMinerTrade.getStatement(playername)
-				local fldStatement = minetest.explode_table_event(fields.fldStatement)
+				local fldStatement = core.explode_table_event(fields.fldStatement)
+			   modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> fldStatement = "..dump(fldStatement))
 				if fldStatement.row ~= nil and type(fldStatement.row) == "number" and fldStatement.row >= 2 and fldStatement.row <= #tblStatement+1 then
 					--modMinerTrade.debug("modMinerTrade.onReceiveFields() >>>  fldStatement = "..dump(fldStatement))
 					modMinerTrade.showAccountBank.frmStatement(playername, fldStatement.row)
@@ -973,7 +977,7 @@ modMinerTrade.onReceiveFields = function(player, formname, fields)
 				if modMinerTrade.isExistAcount(accountname) then
 					local myBalance = modMinerTrade.getBalance(accountname)
 					if tonumber(myValue) <= myBalance then
-						local player = minetest.get_player_by_name(playername)
+						local player = core.get_player_by_name(playername)
 						if player ~= nil and player:is_player() then
 							local delivered = 0
 							local items = modMinerTrade.convValueToItemList(tonumber(myValue))
@@ -1030,7 +1034,7 @@ modMinerTrade.onReceiveFields = function(player, formname, fields)
 		elseif formname == "frmAtmTransfer"  then
 			if fields.btnAtmTransfer ~= nil then
 				--modMinerTrade.debug("modMinerTrade.onReceiveFields() >>> player = "..playername.." | formname = "..formname.." | fields = "..dump(fields))
-				local player = minetest.get_player_by_name(playername)
+				local player = core.get_player_by_name(playername)
 				if player ~= nil and player:is_player() then
 					local accountname = modMinerTrade.bank.player[playername].focused_accountname
 					
@@ -1127,11 +1131,11 @@ end
 
 --###############################################################################################################
 
-minetest.register_node("minertrade:atm", {
+core.register_node("minertrade:atm", {
 	description = core.colorize("#00FF00", 
 		modMinerTrade.translate("PUBLIC ATM")
 	).."\n\t* "..modMinerTrade.translate("Deposit and Withdraw your minercash into your bank account."),
-	--inventory_image =  minetest.inventorycube("text_atm_front_1.png"),
+	--inventory_image =  core.inventorycube("text_atm_front_1.png"),
 	--inventory_image =  "text_atm_front_1.png",
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -1180,27 +1184,27 @@ minetest.register_node("minertrade:atm", {
 		local posAbove = pointed_thing.above --acima
 		local posUnder = pointed_thing.under --abaixo
 		if not placer or not placer:is_player() or
-			not minetest.registered_nodes[minetest.get_node(posAbove).name].buildable_to
+			not core.registered_nodes[core.get_node(posAbove).name].buildable_to
 		then --Verifica se pode construir sobre os objetos construiveis
 			return itemstack
 		end
 		
-		local nodeUnder = minetest.get_node(posUnder)
-		if minetest.registered_nodes[nodeUnder.name].on_rightclick then --Verifica se o itema na mao do jogador tem funcao rightclick
-			return minetest.registered_nodes[nodeUnder.name].on_rightclick(posUnder, nodeUnder, placer, itemstack)
+		local nodeUnder = core.get_node(posUnder)
+		if core.registered_nodes[nodeUnder.name].on_rightclick then --Verifica se o itema na mao do jogador tem funcao rightclick
+			return core.registered_nodes[nodeUnder.name].on_rightclick(posUnder, nodeUnder, placer, itemstack)
 		end
 		
 		if 
 			modMinerTrade.canInteract(playername) 
 			or modMinerTrade.getNodesInRange(posAbove, 5, "minertrade:dispensingmachine") >= 1 
 		then
-			local facedir = minetest.dir_to_facedir(placer:get_look_dir())
-			--minetest.chat_send_player(playername, "[ATM] aaaaaa")
-			minetest.set_node(posAbove, {
+			local facedir = core.dir_to_facedir(placer:get_look_dir())
+			--core.chat_send_player(playername, "[ATM] aaaaaa")
+			core.set_node(posAbove, {
 				name = "minertrade:atm",
 				param2 = facedir,
 			})
-			local meta = minetest.get_meta(posAbove)
+			local meta = core.get_meta(posAbove)
 			meta:set_string("infotext", 
 				--[[
 				modMinerTrade.translate(
@@ -1219,7 +1223,7 @@ minetest.register_node("minertrade:atm", {
 			end
 			itemstack:take_item() -- itemstack:take_item() = Ok
 		else
-			minetest.chat_send_player(playername, 
+			core.chat_send_player(playername, 
 				core.colorize("#00ff00", "["..modMinerTrade.translate("ATM").."]: ")
 				..modMinerTrade.translate("You can not install this 'ATM' too far from a 'Dispensing Machine'!")
 			)
@@ -1231,7 +1235,7 @@ minetest.register_node("minertrade:atm", {
 	
 	on_rightclick = function(pos, node, clicker)
 		local clickername = clicker:get_player_name()
-		local meta = minetest.get_meta(pos)
+		local meta = core.get_meta(pos)
 		--meta:set_string("infotext", modMinerTrade.translate("PUBLIC ATM\n* Save your money in the ATM, and withdraw your money in your Personal Safe or other ATM in the shops scattered around the map."))
 		local opentime = tonumber(meta:get_string("opentime")) or 0
 		local now = os.time() --Em milisegundos
@@ -1248,9 +1252,9 @@ minetest.register_node("minertrade:atm", {
 			--modMinerTrade.showAccountBank.frmMain(clickername)
 			modMinerTrade.showAccountBank.inAtm(clickername, clickername)
 		else
-			--minetest.sound_play("sfx_failure", {object=clicker, max_hear_distance=5.0,})
+			--core.sound_play("sfx_failure", {object=clicker, max_hear_distance=5.0,})
 			modMinerTrade.doSoundPlayer(clickername, "sfx_failure", 5)
-			minetest.chat_send_player(clickername, 
+			core.chat_send_player(clickername, 
 				core.colorize("#00ff00", "["..modMinerTrade.translate("ATM").."]: ")
 				..modMinerTrade.translate(
 					"The ATM will only run %02d seconds after it is installed!"
@@ -1262,7 +1266,7 @@ minetest.register_node("minertrade:atm", {
 })
 
 --[[ --]]
-minetest.register_craft({
+core.register_craft({
 	output = 'minertrade:atm',
 	recipe = {
 		{"default:steel_ingot"	,"default:steel_ingot"		,"default:steel_ingot"},
@@ -1271,24 +1275,24 @@ minetest.register_craft({
 	}
 })
 --]]
-minetest.register_alias("atm","minertrade:atm")
-minetest.register_alias(modMinerTrade.translate("atm"),"minertrade:atm")
+core.register_alias("atm","minertrade:atm")
+core.register_alias(modMinerTrade.translate("atm"),"minertrade:atm")
 
-minetest.register_on_player_receive_fields(function(sender, formname, fields)
+core.register_on_player_receive_fields(function(sender, formname, fields)
 	return modMinerTrade.onReceiveFields(sender, formname, fields)
 end)
 
-minetest.register_on_joinplayer(function(player)
+core.register_on_joinplayer(function(player)
 	local playername = player:get_player_name()
 	if not modMinerTrade.isExistAcount(playername) then
 		modMinerTrade.createAcount(playername)
 	end
 end)
 
-minetest.register_on_leaveplayer(function(player)
+core.register_on_leaveplayer(function(player)
 	modMinerTrade.doBankSave()
 end)
 
-minetest.register_on_shutdown(function()
+core.register_on_shutdown(function()
 	modMinerTrade.doBankSave()
 end)