Fatal error: Uncaught Error: Class "MediaWiki\Api\ApiBase" not found in /home/ccmdb/ccmdb.kuality.ca/extensions/DiscussionTools/includes/ApiDiscussionToolsCompare.php:16 Stack trace: #0 {main} thrown in /home/ccmdb/ccmdb.kuality.ca/extensions/DiscussionTools/includes/ApiDiscussionToolsCompare.php on line 16