Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\uvdesk\automation-bundle\Event\ActivityEvent.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\uvdesk\automation-bundle\Event\ActivityEvent.php on line 7