I replied in this other thread about similar issues - any time a restart of the shield is done, the PMS either reverts to “localhost” and loses the config pointing to the external USB drive for PMS data (requiring complete setup again) or when it restarts and fails, PMS isn’t running at all and requires setup from scratch.
I can send those same logs to you if the original plex team member hasn’t shared them (I’d rather not post publicly).