Fatal error: Uncaught Error: Class 'LaravelFCM\Sender\HTTPSender' not found in /home/gameserver/public_html/vendor/brozot/laravel-fcm/src/Sender/FCMGroup.php:11 Stack trace: #0 {main} thrown in /home/gameserver/public_html/vendor/brozot/laravel-fcm/src/Sender/FCMGroup.php on line 11