Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /home/webvertising/public_html/seo.24marketing.nl/vendor/liip/test-fixtures-bundle/src/Event/FixtureEvent.php:25 Stack trace: #0 {main} thrown in /home/webvertising/public_html/seo.24marketing.nl/vendor/liip/test-fixtures-bundle/src/Event/FixtureEvent.php on line 25