Fatal error: Uncaught Error: Class "Doctrine\DBAL\Exception\DriverException" not found in D:\Apache24\www\dls\back-end\vendor\doctrine\dbal\src\Exception\TransactionRolledBack.php:5 Stack trace: #0 {main} thrown in D:\Apache24\www\dls\back-end\vendor\doctrine\dbal\src\Exception\TransactionRolledBack.php on line 5