Fatal error: Uncaught Error: Class 'GadgetRepo' not found in /var/www/html/wiki_2023/extensions/Gadgets/includes/MediaWikiGadgetsDefinitionRepo.php:11 Stack trace: #0 {main} thrown in /var/www/html/wiki_2023/extensions/Gadgets/includes/MediaWikiGadgetsDefinitionRepo.php on line 11