Fatal error: Uncaught Error: Class "Doctrine\ORM\Exception\ORMException" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\orm\lib\Doctrine\ORM\PessimisticLockException.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\orm\lib\Doctrine\ORM\PessimisticLockException.php on line 9