diff --git a/lib/HttpInput.php b/lib/HttpInput.php
index 60f3b48d..ece627a9 100644
--- a/lib/HttpInput.php
+++ b/lib/HttpInput.php
@@ -22,7 +22,7 @@ class HttpInput{
 	}
 
 	public static function RequestType(): int{
-		return preg_match('/\btext\/html\b/ius', $_SERVER['HTTP_ACCEPT']) ? WEB : REST;
+		return preg_match('/\btext\/html\b/ius', $_SERVER['HTTP_ACCEPT'] ?? '') ? WEB : REST;
 	}
 
 	public static function Str(string $type, string $variable, bool $allowEmptyString = true, string $default = null): ?string{
diff --git a/lib/PollVote.php b/lib/PollVote.php
index 3105f7a2..d34ddfcf 100644
--- a/lib/PollVote.php
+++ b/lib/PollVote.php
@@ -46,10 +46,16 @@ class PollVote extends PropertiesBase{
 			if($this->PollItem === null){
 				$error->Add(new Exceptions\InvalidPollException());
 			}
-		}
-
-		if(!$this->PollItem->Poll->IsActive()){
-			$error->Add(new Exceptions\PollClosedException());
+			else{
+				if($this->PollItem->Poll === null){
+					$error->Add(new Exceptions\InvalidPollException());
+				}
+				else{
+					if(!$this->PollItem->Poll->IsActive()){
+						$error->Add(new Exceptions\PollClosedException());
+					}
+				}
+			}
 		}
 
 		if(!$error->HasExceptions){