Fatal error: Uncaught Error: Class 'Kreait\Firebase\Exception\RuntimeException' not found in /home/rrcwnqvo/public_html/vendor/kreait/firebase-php/src/Exception/Messaging/ApiConnectionFailed.php:11 Stack trace: #0 {main} thrown in /home/rrcwnqvo/public_html/vendor/kreait/firebase-php/src/Exception/Messaging/ApiConnectionFailed.php on line 11