ToME: the Tales of Maj'Eyal

Suddenly, nothing except main menu can load, all I get is loading screen stuck at 100%.
Everything is up to date, checked several times.
Here's the tail of log file:

Loading entities file from file /data/general/objects/world-artifacts.lua
Lua Error: /data/general/objects/world-artifacts.lua:24: attempt to index field 'state' (a nil value)
At [C]:-1 __index
At /data/general/objects/world-artifacts.lua:24 f
At /engine/Entity.lua:1261 loadList
At /engine/Entity.lua:1250 load
At /data/general/objects/objects.lua:22 loadIfNot
At /data/general/objects/objects.lua:85 f
At /engine/Entity.lua:1261 loadList
At /engine/Entity.lua:1250 load
At /data/general/objects/objects-far-east.lua:22 loadIfNot
At /data/general/objects/objects-far-east.lua:25 f
At /engine/Entity.lua:1261 loadList
At /engine/Entity.lua:1250 load
At /data/zones/high-peak/objects.lua:20 f
At /engine/Entity.lua:1261 loadList
At /engine/Zone.lua:176 loadBaseLists
At /engine/Zone.lua:795 loaded
At /engine/Savefile.lua:516 loadWorld
At /engine/Module.lua:1093 instanciate
At /engine/utils.lua:2953 showMainMenu
At /engine/init.lua:207
At [C]:-1 dofile
At /loader/init.lua:217

Things I tried to fix this:
0) reloading the game, disabling all addons except official, disabling all addons;
1) reinstalling a few times on different discs;
2) installing clean non-Steam version.

Kinda don't want to reinstall Windows just to fix ToME.

Update: fixed by deleting everything in C:\Users\<Username>\T-Engine and reinstalling again, huge thanks to Pot from official Discord.