Fatal error: Uncaught Error: Class "MediaWiki\Rest\SimpleHandler" not found in C:\xampp\htdocs\extensions\CheckUser\src\Api\Rest\Handler\AbstractTemporaryAccountHandler.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\CheckUser\src\Api\Rest\Handler\AbstractTemporaryAccountHandler.php on line 23