[1.20.1, Forge]
crash-2025-01-11_11.42.53-client.txt

Exit code 255
So the game crashed when I tried to create a new world. Also one of my old worlds can't open anymore because "Errors in the selected data packs pervented world from loading" or something, idk, it's the message that occurs when you try to load a modded world without one of the mods. I think there existed some sullysmod:jade 's in my world, so that's why it can't open anymore.

Mod version⬇️

Updating Spelunkery to 0.3.15 should fix the issue

Didn't work
crash-2025-01-11_18.38.55-client.txt

Nevermind... I downloaded a newer version of the mod and it works now, turns out my file was 2 versions outdated.