Fatal error: Uncaught Error: Interface "MediaWiki\Page\Hook\ArticleDeleteCompleteHook" not found in /var/www/html/extensions/FlaggedRevs/includes/backend/FlaggedRevsHooks.php:40 Stack trace: #0 {main} thrown in /var/www/html/extensions/FlaggedRevs/includes/backend/FlaggedRevsHooks.php on line 40