Fatal error: Uncaught Error: Class "MediaWiki\Extension\SpamBlacklist\BaseBlacklist" not found in /var/www/html/orian-wiki/extensions/SpamBlacklist/includes/EmailBlacklist.php:13 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/SpamBlacklist/includes/EmailBlacklist.php on line 13