Fatal error: Uncaught Error: Class "Doctrine\DBAL\Event\SchemaEventArgs" not found in /home/alkhalaffamily/public_html/teachme/vendor/doctrine/dbal/src/Event/SchemaCreateTableColumnEventArgs.php:16 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/teachme/vendor/doctrine/dbal/src/Event/SchemaCreateTableColumnEventArgs.php on line 16