Fatal error: Uncaught Error: Interface 'Symfony\Contracts\EventDispatcher\EventDispatcherInterface' not found in /home/soh-works/www/3good_old/vendor/symfony/event-dispatcher/EventDispatcherInterface.php:23 Stack trace: #0 {main} thrown in /home/soh-works/www/3good_old/vendor/symfony/event-dispatcher/EventDispatcherInterface.php on line 23