Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /var/www/html/ihp.stage-ci.design/vendor/acquia/content-hub-php/src/EventSubscriber/DefaultCDF.php:15 Stack trace: #0 {main} thrown in /var/www/html/ihp.stage-ci.design/vendor/acquia/content-hub-php/src/EventSubscriber/DefaultCDF.php on line 15