Someone could help me, I’m having this error on one of the servers that I manage.
Unexpected difference in fileset version 1: 29/04/2021 13:50:37 (database id: 1), found 2760 entries, but expected 3189
What version of Duplicati are you using? Some of the older versions could cause this issue to develop. I would recommend upgrading to the 2.0.6.1 beta. Upgrading won’t automatically fix this issue, but it should stop it from happening again.
To fix this issue you can try deleting the offending backup version. There are many threads on this topic. Here’s a post with quick instructions: