Hi @Sterfield, how did you run the database upgrade? Did you run a container with the pgautoupgrade/pgautoupgrade:15-alpine3.8 image?
Separately, when I look at your log file, it looks like the upgrade was successfull. In your backend output log, I’m seeing the error __fake__.Operation.MultipleObjectsReturned: get() returned more than one Operation -- it returned 2!. Could that somehow be related to you having tried to restore your backup into an existing database (Baserow restoration issues), now resulting in duplicate entries? The error actually looks like it.