Fatal error: Uncaught Error: Class "MediaWiki\Block\Restriction\AbstractRestriction" not found in /var/www/html/orian-wiki/includes/block/Restriction/NamespaceRestriction.php:27
Stack trace:
#0 {main}
thrown in /var/www/html/orian-wiki/includes/block/Restriction/NamespaceRestriction.php on line 27