Fatal error: Uncaught Error: Interface "MediaWiki\RCFeed\RCFeedFormatter" not found in /var/www/html/w/includes/RCFeed/IRCColourfulRCFeedFormatter.php:29 Stack trace: #0 {main} thrown in /var/www/html/w/includes/RCFeed/IRCColourfulRCFeedFormatter.php on line 29