Fatal error: Uncaught Error: Class "OCA\DAV\Connector\Sabre\Auth" not found in /var/www/html/nextcloud/apps/dav/appinfo/v1/carddav.php:31 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/dav/appinfo/v1/carddav.php on line 31