Fatal error: Uncaught Error: Interface 'Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface' not found in /home/devmecseminars/public_html/mec/vendor/symfony/http-foundation/Session/Attribute/AttributeBag.php:17
Stack trace:
#0 {main}
thrown in /home/devmecseminars/public_html/mec/vendor/symfony/http-foundation/Session/Attribute/AttributeBag.php on line 17