How to recover backup with damaged dblock file?

Sorry to relive that old topic

I agree with this. This is what I end doing with two issues.

I do the same but to avoid the DB rebuilt time, I copy the local DB of the working backup, change the name of the DB file (XXXX.sqlite). After configuring the new backup (I do not export import settings as it has caused me some issues), I change the DB path to the copied DB. It works directly.