My apologies for the delay...
Curiously, I'm finding a different error by a different process today. I cannot recall if the Close Encounters extension is yours? Transposing here while I close the loop, then I'll find that extension's thread and report there:
Opening the Scrag Berserker from the NPC dialog is fine, but when I click on its Spells tab, the following error gets thrown twice:
[ERROR] Script execution error: [String "CloseEncounters:...manage_power_core_ce.lua"]:48: attempt to call global 'registerDefaultPowerMenuOriginal' (a nil value)
As requested, a screenshot of the spells tab (hovering to reveal the results of the effect)
Attachment 57012

