Fatal error: Uncaught Error: Interface "Sabre\DAV\IFile" not found in /var/www/cal.digio.space/vendor/sabre/dav/lib/CardDAV/ICard.php:19 Stack trace: #0 {main} thrown in /var/www/cal.digio.space/vendor/sabre/dav/lib/CardDAV/ICard.php on line 19