[Trinity Creator] Adding Questgiver, crashes server on startup

[Rokit 0]

I have just begun adding custom NPCs to my environment. I am using Trinity Creator (latest 1.1.x version, not alpha) and when I add a new NPC it uploads to the SQL DB and then when I attempt to start the server; this happens.


I have only the vaguest idea of why this may be happening.

Here is the trinity creator entry I am adding

 

 

Is there something obvious I am missing? Does anyone have a good pointer to a tutorial for troubleshooting Trinity Creator?

The server works again if I merely delete the DB entry in creature_template so I assume it is something involving what fields are filled / unfilled in the entry OR some other part of the game anatomy that I need to alter to allow the server to accept the new NPC.

The server also works if I merely copy an existing npc and change it manually (this is a pain but an alternative if I cannot solve this problem with some help)

For context, I am making a cauldron questgiver that cannot be selected, hides its name and cannot be killed / damaged.

Any help is appreciated.