can't update to new version SmartFTP v1.0 Build 983

Key NO 400002060

This is the error I receive when I use the update button:

unable to get the config from [url="ftp://ftpl.varta_expericene.de/VARTA_smartftpupdate.ini"]ftp://ftpl.varta_expericene.de/VARTA_smar...rtftpupdate.ini[/url].

Please advise
Thanks