Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/likach/contao44.lika.ch/vendor/terminal42/header-replay-bundle/src/Event/HeaderReplayEvent.php:18 Stack trace: #0 {main} thrown in /home/likach/contao44.lika.ch/vendor/terminal42/header-replay-bundle/src/Event/HeaderReplayEvent.php on line 18