Fatal error: Uncaught Error: Class "Doctrine\Common\EventArgs" not found in /home/gmarket/public_html/vendor/doctrine/persistence/lib/Doctrine/Persistence/Event/ManagerEventArgs.php:11 Stack trace: #0 {main} thrown in /home/gmarket/public_html/vendor/doctrine/persistence/lib/Doctrine/Persistence/Event/ManagerEventArgs.php on line 11