Fatal error: Uncaught Error: Class "MediaWiki\Api\ApiBase" not found in C:\xampp\htdocs\extensions\AbuseFilter\includes\Api\UnblockAutopromote.php:11 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\AbuseFilter\includes\Api\UnblockAutopromote.php on line 11