Hi Paul,
The nsd.db is corrupted. Delete it, it gets recreated and then things
should be fine.
database: "" is a nsd.conf option that runs without the nsd.db file.
I am interested in getting this nsd.db file and examining it. I would
also like to ask how the daemon, disk, or machine was stopped before
that - because the file is corrupted. (Out of disk space?)
Best regards, Wouter