"invalid path" in backup when trying to update memories from 2019 to 2021 on mac

Dear all,

I just upgraded to Studio 2021 and am trying to upgrade my memories. On my pc, it works without problems.

But on my May with parallels I get an error message concerning the backup that the path is invalid.

RWS suggested moving the memories to C/ to upgrade them - which I did - but then I got the error message that there was no access to a certain log-file (which does not even exist on my computer, I searched by name).

Can anybody help?

Thank you, Kristina