Fatal error: Uncaught Error: Class "Doctrine\Common\EventArgs" not found in /var/www/html/goe/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Event/ManagerEventArgs.php:33 Stack trace: #0 {main} thrown in /var/www/html/goe/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Event/ManagerEventArgs.php on line 33