Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Loader\LoaderInterface" not found in /users/danielstruebig/www/familyhelper/vendor/symfony/routing/Loader/AttributeClassLoader.php:56 Stack trace: #0 {main} thrown in /users/danielstruebig/www/familyhelper/vendor/symfony/routing/Loader/AttributeClassLoader.php on line 56