Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Event\TransactionEventArgs' not found in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/doctrine/dbal/src/Event/TransactionBeginEventArgs.php:8 Stack trace: #0 {main} thrown in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/doctrine/dbal/src/Event/TransactionBeginEventArgs.php on line 8