Fatal error: Uncaught Error: Class "Doctrine\DBAL\Driver\AbstractException" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\doctrine\dbal\src\Driver\Mysqli\Exception\ConnectionError.php:13 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\doctrine\dbal\src\Driver\Mysqli\Exception\ConnectionError.php on line 13