MaxDB backup problem

Good day all

I'm not sure what I amy be doing wrong. A few days ago I installed a Solution Manager 71 (MaxDB 78) system on Win 2012. I am trying to get data and log backups configured with DB Studio but getting errors that I cant find too much information on. When I go into the backup function and try to define a backup medium, I am presented with the message "Saving backup template <name> has encountered a problem". Quite a lot of stuff but the popup displays:

And this doesnt mean anything to me. I also find very vague reference to it on the internet.

Can anyone give some direction please?

Regards

Ray Phillips