Fatal error: Uncaught Error: Class "MediaWiki\Extension\Gadgets\GadgetRepo" not found in /var/www/html/orian-wiki/extensions/Gadgets/includes/GadgetDefinitionNamespaceRepo.php:20 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/Gadgets/includes/GadgetDefinitionNamespaceRepo.php on line 20