Fatal error: Uncaught Error: Interface "Zikula\Bundle\HookBundle\HookSubscriberInterface" not found in /home/dwtechco/public_html/vendor/zikula/mailer-module/HookSubscriber/UiHooksSubscriber.php:20 Stack trace: #0 {main} thrown in /home/dwtechco/public_html/vendor/zikula/mailer-module/HookSubscriber/UiHooksSubscriber.php on line 20