Fix database error with false bolean value in profile table

src/classes/Pollers/Profile.php

@@ -240,7 +240,7 @@ class Profile
 			'language'     => $params['language'] ?? null,
 			'filled_fields'=> $filled_fields,
 			'last_activity'=> $params['last-activity'] ?? null,
-			'available'    => $available,
+			'available'    => [$available, \PDO::PARAM_BOOL],
 		];
 
 		$this->logger->debug(var_export($values, true));