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