Restore

Hi all,
I am unable to restore virtual servers on my system, I backup to an remote server via SSH.
Virtualmin Version 3.42.gpl
Webmin Version 1.350
Suse (SLES9)

"Restore failed : The specified source is not a Virtualmin backup : Server etc/postfix/sasl appears twice in backup directory"
It does not matter if i check the retsore mail or not.

Can anyone help ?
Thanks
Henry