It leads to UI scripts, but I believe it's working. Maybe it's a bug from corrupt save files? If you loaded a game from a previous save file, it may have loaded an outdated code and it may be causing errors.
I recently released version 0.8 publicly, if you wanna try, maybe it's fixed now. Consider starting a new game or loading a non too recent save file to avoid incompatibilities.
If the problem still occurs, please describe in what part it happens :)