Fatal error: Uncaught Error: Interface "GuzzleHttp\ClientInterface" not found in /home/cvpchat/public_html/websocket/vendor/kreait/firebase-php/src/Firebase/Auth/ApiClient.php:29 Stack trace: #0 {main} thrown in /home/cvpchat/public_html/websocket/vendor/kreait/firebase-php/src/Firebase/Auth/ApiClient.php on line 29