Fatal error: Uncaught Error: Interface "MediaWiki\Output\Hook\BeforePageDisplayHook" not found in /home/floten1/q.tenbergen.ca/extensions/CheckUser/src/HookHandler/PageDisplay.php:15 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/CheckUser/src/HookHandler/PageDisplay.php on line 15