Fatal error: Uncaught Error: Class "Symfony\Component\Routing\Router" not found in /home2/zpcu9479/app.gennia.fr/vendor/symfony/framework-bundle/Routing/Router.php:34 Stack trace: #0 {main} thrown in /home2/zpcu9479/app.gennia.fr/vendor/symfony/framework-bundle/Routing/Router.php on line 34