Fatal error: Uncaught Error: Class 'Contao\CoreBundle\Routing\AbstractPageRouteProvider' not found in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Routing/Route404Provider.php:29 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Routing/Route404Provider.php on line 29