ToME: the Tales of Maj'Eyal

I was fighting in the shadow crypt, and had recently gotten the Goedalath rock (in case it's at all relevant) - after figuring out why I had negative health regen and seeing it, I killed a few monsters and went down the stairs. At the first enemy I saw, I tried to use Assault - only, instead, I got a LUA error! - now, whenever I use any talent that requires a target, I get this LUA error! - according to the log file it's this:

Lua Error: /engine/interface/ActorTalents.lua:140: /engine/interface/ActorTalents.lua:129: attempt to index upvalue 'force_target' (a nil value)
At [C]:-1
At [C]:-1 error
At /engine/interface/ActorTalents.lua:140 useTalent
At /engine/interface/PlayerHotkeys.lua:116
At /engine/interface/PlayerHotkeys.lua:108 activateHotkey
At /mod/class/Game.lua:1511 f
At /mod/class/Game.lua:1182 fct
At /engine/interface/PlayerHotkeys.lua:256
At /engine/KeyBind.lua:224

My character is stuck here - he's level 46. Is there anything I can do to fix this? I'm not even sure what caused it.

I would try to get Darkgod on line (IRC) at irc.rizon.net #tome, and see if he can help you from within the game.

Dunno what the exact bug would be though.