ToME: the Tales of Maj'Eyal

I saved my game and exited, and now when I try to load a game, or even start a new one, I get this error:

Lua Error: /mod/class/uiset/Minimalist.lua:137: attempt to index a nil value
At [C]:-1 __index
At /mod/class/uiset/Minimalist.lua:137
At [C]:-1 require
At /mod/class/Game.lua:403 loaded
At /engine/GameEnergyBased.lua:39 int
At /engine/GameTurnBased.lua:39 int
At mod/class/Game.lua:79 int
At /engine/class.lua:147 new
At /engine/Module.lua:1032 instanciate
At /engine/utils.lua:2284 showMainMenu
At /engine/init.lua:199
At [C]:-1 dofile
At /loader/init.lua:217

I don't have any addons enabled except for the items vault. This only started after closing the game and opening it again. I start the game using a Steam shortcut, since I have the version of the game from the website.

You can try to reinstall the game and see if that helps. Just an idea.