Fatal error: Uncaught Error: Class "Kreait\Firebase\Exception\RuntimeException" not found in /home/tyasart/public_html/vendor/kreait/firebase-php/src/Firebase/Auth/CreateSessionCookie/FailedToCreateSessionCookie.php:15 Stack trace: #0 {main} thrown in /home/tyasart/public_html/vendor/kreait/firebase-php/src/Firebase/Auth/CreateSessionCookie/FailedToCreateSessionCookie.php on line 15