Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /srv/disk3/2724534/www/transdoetaskforce.org/concrete/src/User/Group/LogSubscriber.php:19 Stack trace: #0 {main} thrown in /srv/disk3/2724534/www/transdoetaskforce.org/concrete/src/User/Group/LogSubscriber.php on line 19