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