@Marvin I’m having problems running prefect server. I first see the error

sqlalchemy.exc.InvalidRequestError: Can't operate on closed transaction inside context manager.  Please complete the context manager before emitting further commands

and then after a while I see

alembic.util.exc.CommandError: Can't locate revision identified by '4c74ff16671c'

I tried upgrading the DB and upgrading the version of prefect, but still hitting the same issue. How can I resolve this?