Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Routing\trigger_deprecation() in /mnt/volume_lon1_01/backend/admin/vendor/symfony/routing/RouteCollectionBuilder.php:19 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/symfony/routing/RouteCollectionBuilder.php on line 19