Fatal error: Uncaught Error: Class "Kreait\Firebase\Messaging\CloudMessage" not found in /home/cvpchat/public_html/websocket/vendor/kreait/firebase-php/src/Firebase/Messaging/ConditionalMessage.php:12 Stack trace: #0 {main} thrown in /home/cvpchat/public_html/websocket/vendor/kreait/firebase-php/src/Firebase/Messaging/ConditionalMessage.php on line 12