Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventDispatcherInterface' not found in /home/kubalos2/public_html/testtestowy/vendor/symfony/event-dispatcher/EventDispatcher.php:29 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/symfony/event-dispatcher/EventDispatcher.php on line 29