Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\SessionInterface" not found in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/http-foundation/Session/Session.php:30 Stack trace: #0 {main} thrown in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/http-foundation/Session/Session.php on line 30