Fatal error: Uncaught Error: Class "MediaWiki\Api\ApiBase" not found in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Api/ApiEchoMute.php:13 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Api/ApiEchoMute.php on line 13