[3.0] Fix a undefined query_string

We can and will blame Vector

Author: jdarwood007

Sources/ErrorHandler.php

@@ -280,7 +280,6 @@ public static function log(string $error_message, string|bool $error_type = 'gen
 			time(),
 			User::$me->ip ?? IP::getUserIP(),
 			$request_url,
-			$query_string,
 			$error_message,
 			(string) (User::$sc ?? ''),
 			$error_type,