[MM3-users] Re: Database problem after system upgrade

[Odhiambo]

[...]

That message is cryptic to me, but [2]@Mark Sapiro might know. Could you please see if there are stale lock files in  /opt/mailman3/var/locks/ that could be preventing mailman3 from starting? If there are two files there, delete them and try starting mailman3 again. Beyond that possibility, I now remain clueless :)

Deleting the lock files did the trick.

Thanks.

Lars