Deprecated: Return type of sngrl\PhpFirebaseCloudMessaging\Message::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/v2appclykk/public_html/routing_management/vendor_old/sngrl/php-firebase-cloud-messaging/src/Message.php on line 160