Backup - Restore

I am running two Suse 3.61.gpl servers
Server 1 is Suse 9 Enterprise
Server 2 is OpenSuse 10.2

In scheduled backups all domains report "backed up successfully" but all sub domain report error this is on both servers no reason specified. I have tried to change settings but still error.

I can restore on the Suse 9 but when I try to restore on Suse 10.2 I get the following:
Restore failed : The specified source does not contain any domains, or is not a Virtualmin backup
When I unzip the tar.gz I can see all the files.

Are there any logs or how can I debug this ?