Fatal error: Uncaught Error: Class "Wikimedia\ParamValidator\TypeDef" not found in /var/www/html/orian-wiki/includes/ParamValidator/TypeDef/TitleDef.php:22 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/includes/ParamValidator/TypeDef/TitleDef.php on line 22