Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in C:\Web\htdocs\recta\customers\fundacionfarfalina\backend\vendor\symfony\event-dispatcher\GenericEvent.php:21 Stack trace: #0 {main} thrown in C:\Web\htdocs\recta\customers\fundacionfarfalina\backend\vendor\symfony\event-dispatcher\GenericEvent.php on line 21