Fatal error: Uncaught Error: Class 'Contao\CoreBundle\Event\AbstractResponseContextEvent' not found in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Event/JsonLdEvent.php:15 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Event/JsonLdEvent.php on line 15