Fatal error: Uncaught Error: Class "Doctrine\DBAL\Exception" not found in D:\NTG_App\www\store_management_system\vendor\doctrine\dbal\src\ConnectionException.php:6 Stack trace: #0 {main} thrown in D:\NTG_App\www\store_management_system\vendor\doctrine\dbal\src\ConnectionException.php on line 6