Fatal error: Uncaught Error: Class "Symfony\Component\Routing\Generator\UrlGenerator" not found in /users/ms-it/www/oc/lib/composer/symfony/routing/Generator/CompiledUrlGenerator.php:21 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/composer/symfony/routing/Generator/CompiledUrlGenerator.php on line 21