Fatal error: Uncaught Error: Class "Wikibase\Repo\FederatedProperties\FederatedPropertiesException" not found in /var/www/html/w/extensions/Wikibase/repo/includes/FederatedProperties/ApiRequestExecutionException.php:11 Stack trace: #0 {main} thrown in /var/www/html/w/extensions/Wikibase/repo/includes/FederatedProperties/ApiRequestExecutionException.php on line 11