Game Got Buggy, Now I Can't Load a New or Saved Game

[jacobgt7]

I had just beat the game with the new Necromancer build (super OP by the way, lots of fun), and afterwards the game became very slow and started acting a bit funny. After transporting back to Maj Eyal, I saved and quit to menu. From there I tried to start a new game, and once the load bar got to 100% it just stayed that way. I tried multiple times and tried to load the before mentioned saved game, and the same thing happened every time. I run the game from the command line in Ubuntu 20, and this is what the command line is reading out:

...Loading entities file from file /data/general/objects/gauntlets.lua
Loading entities file from file /data/general/objects/cloak.lua
Loading entities file from file /data/general/objects/leather-belt.lua
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
[GAMMA] Setting gamma correction using SDL 1.2
FROM /mod/addons/cults/superload/engine/dialogs/ShowErrorStack.lua loading previous!
Server latency 216
Server latency 211
Server latency 116
[ENGINE] Setting requested FPS to 2 (500 ms)
Server latency 157
Deleting temp shader main_fbo/wobbling[]
Deleting temp shader main_fbo/sharpen[]
Deleting temp shader main_fbo[]
Deleting temp shader main_fbo/gestures[]
Deleting temp shader cults_book_seens[]
Deleting temp shader main_fbo/blur[]
Deleting temp shader cults_book[]
Deleting temp shader target_fbo[]
Deleting temp shader main_fbo/line_grids[]
Deleting temp shader main_fbo/motionblur[]
Deleting temp shader full_fbo[]
Deleting temp shader main_fbo/underwater[]
Deleting temp shader main_fbo/timestop[]
Deleting temp shader awesomeaura[alpha=0.7,flame_scale=0.8,time_factor=6200]
Deleting temp shader crystalineaura[color=vec3(0.67058823529412,0.15686274509804,0.15686274509804),growthSpeed=2,spikeLength=0.5,spikeOffset=0.223123,spikeWidth=1,time_factor=2500]
Deleting temp shader awesomeaura[alpha=1,flame_scale=1.1,time_factor=3500]
Deleting temp shader awesomeaura[alpha=0.6,flame_scale=0.6,time_factor=5500]
Deleting temp shader awesomeaura[alpha=0.6,flame_scale=0.6,time_factor=3500]
Deleting temp shader tentacles[time_factor=500,wobblingType=1]
Deleting temp shader tentacles[time_factor=2500,wobblingType=1]
Server latency 179

...And so on. It keeps saying server latency and a 3 digit number, and that's it. Can anyone help? Thanks!