Had to shutdown the nas box due to switching out some light switches. I did a graceful shutdown of the unit before cutting the power. Once the power was turned back on now I am getting the following when trying to restart the emby server on the NAS.
pkgctl-EmbyServer failed to Start.. error unknow [0x0000 (null):0]
If I try from the GUI the error message is Failed to run the package service.
Not sure if this is in the documentation but the reason for the failure was the emby server user had an expired password. I changed the password and checked the box for Password is always valid. Then logged in as embysvr to the NAS web console to set a new password. Once this was done it was good to go, I will be installing the backup plugin, in case I need to reinstall.
Maybe it is just me, but hope this helps someone else