Validation of ssl-fingerprint faild after update

I am a simple user of duplicati, that worked fine until now.
I did update to 2.0.8.1_beta_2024-05-07 (windows 7).

Now every backup fails with the same error message.
Therefore I need a VERY SIMPLE STEP-BY-STEP explanation, how to fix it, e.g. clear or reset the key. I tried to set “accept-any-ssl-certificate”, but the error is persisting.

Thanks for help.

Welcome to the forum @mammut

SSL and SSH are different. I assume this is SSH, which uses a fingerprint you accepted once.

Maybe like this from a similar report.

Thanks a lot. It is the solution, but It’s hidden very well.