Currently the mod is broken, gameconfig.xml is possibly the problem. The site offers several files of these but the problem is that they do not fully correct the problem since the game may crash at the beginning, it may crash in specific areas or it may crash after a few minutes, depending on the gameconfigs, ironically the game just seems to work in 1.41 pirated versions (it doesn't crash but needs a specific gameconfig that I don't know which one) however non-pirated versions have this problem and there seems to be no solution without modifying the file.