Fatal error: Uncaught Error: Class 'ApiBase' not found in /var/www/html/wiki_2023/extensions/TitleBlacklist/includes/api/ApiQueryTitleBlacklist.php:30 Stack trace: #0 {main} thrown in /var/www/html/wiki_2023/extensions/TitleBlacklist/includes/api/ApiQueryTitleBlacklist.php on line 30