Version : Minecraft 1.16.5 Forge 36.2.39 x3Dungeons 1.4
I also have a modpack with 100+ mods, I just tried to add this one

Can't enter the world, apparently someone else got that problem
Tell me if you need more infos.
Crash report :
crash-2022-10-19_17.24.30-server.txt

Please update to the newest version of the mod, if this issue persists send a new log.