Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\SessionInterface" not found in /home/tubu/public_html/Drupal_CMS/cms/vendor/symfony/http-foundation/Session/FlashBagAwareSessionInterface.php:19 Stack trace: #0 {main} thrown in /home/tubu/public_html/Drupal_CMS/cms/vendor/symfony/http-foundation/Session/FlashBagAwareSessionInterface.php on line 19