Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /var/www/html/demo.ininli.ca/releases/16/src/EventSubscriber/UserCrudSubscriber.php:19 Stack trace: #0 {main} thrown in /var/www/html/demo.ininli.ca/releases/16/src/EventSubscriber/UserCrudSubscriber.php on line 19