R6 v6.0 Crash Redhat 73 -- nsd fatal refernce design

One of the servers in my cluster crashed and left an nsd file in its wake.

The nsd reflects a fatal_error just after the listing for /opt/lotus/notes/latest/linux/design

This is the only error I find in the nsd file from the date / time of the crash.

I had to manually kill all processes owned by the “domino” user account on the linux server in order to get a restart of Domino to work.

Any advice on trouble shooting?