Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\ScalarNode" not found in /home2/zpcu9479/app.gennia.fr/vendor/symfony/config/Definition/EnumNode.php:21 Stack trace: #0 {main} thrown in /home2/zpcu9479/app.gennia.fr/vendor/symfony/config/Definition/EnumNode.php on line 21