Fatal error: Uncaught Error: Class "Sabre\DAV\Browser\Plugin" not found in /var/www/html/ilias/components/ILIAS/WebDAV/classes/browser/class.ilWebDAVSabreBrowserPlugin.php:27 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/WebDAV/classes/browser/class.ilWebDAVSabreBrowserPlugin.php on line 27