Fatal error: Uncaught Error: Interface "Zend\EventManager\EventsCapableInterface" not found in /var/www/apache/dev/cal/web/vendor/zendframework/zend-eventmanager/src/EventManagerAwareInterface.php:15 Stack trace: #0 {main} thrown in /var/www/apache/dev/cal/web/vendor/zendframework/zend-eventmanager/src/EventManagerAwareInterface.php on line 15