Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\BaseNode" not found in /home/mboption/public_html/forums/vendor/symfony/config/Symfony/Component/Config/Definition/ArrayNode.php:23 Stack trace: #0 {main} thrown in /home/mboption/public_html/forums/vendor/symfony/config/Symfony/Component/Config/Definition/ArrayNode.php on line 23