[MM3-users] alembic.util.exc.CommandError: Can't locate revision identified by xx

I upgraded my Fedora distro from v.40-41. I did

pip install wheel mailman psycopg2-binary

When running the mailman command, I get

alembic.util.exc.CommandError: Can't locate revision identified by '8cc1f79f4459'

How do I solve this?

Thanks, Lars