Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /home/fotonoma/public_html/wallabag/vendor/lexik/form-filter-bundle/Event/ApplyFilterConditionEvent.php:13 Stack trace: #0 {main} thrown in /home/fotonoma/public_html/wallabag/vendor/lexik/form-filter-bundle/Event/ApplyFilterConditionEvent.php on line 13