Fatal error: Uncaught Error: Class "MediaWiki\Rest\Handler" not found in /var/www/html/orian-wiki/extensions/VisualEditor/includes/VEParsoid/src/Rest/Handler/ParsoidHandler.php:60 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/VisualEditor/includes/VEParsoid/src/Rest/Handler/ParsoidHandler.php on line 60