Fatal error: Uncaught Error: Interface "MediaWiki\ChangeTags\Hook\ChangeTagsListActiveHook" not found in C:\xampp\htdocs\extensions\DiscussionTools\includes\Hooks\TagHooks.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\DiscussionTools\includes\Hooks\TagHooks.php on line 18