Comment 2 for bug 1981325

I reported this in Discourse and added a post today on how I got out of the situation:

https://discourse.charmhub.io/t/juju-units-die-with-unexpected-error-unknown-object-type-secretsmanager-not-implemented/6693/8

I think there was an out of disk situation for the problematic controller a while ago (months). Maybe this caused the problem, not sure.