Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\VariableNode" not found in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/config/Definition/ScalarNode.php:28 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/config/Definition/ScalarNode.php on line 28