Fatal error: Uncaught Error: Interface "Symfony\Component\Form\FormExtensionInterface" not found in /home/dodom2/public_html/cgilink.biz/vendor/symfony/form/PreloadedExtension.php:21 Stack trace: #0 {main} thrown in /home/dodom2/public_html/cgilink.biz/vendor/symfony/form/PreloadedExtension.php on line 21