Fatal error: Uncaught Error: Interface "MediaWiki\Hook\SpecialContributionsBeforeMainOutputHook" not found in C:\xampp\htdocs\extensions\CheckUser\src\HookHandler\ToolLinksHandler.php:27 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\CheckUser\src\HookHandler\ToolLinksHandler.php on line 27