Board Thread:LotR Mod Technical Support/@comment-27387657-20151231164048/@comment-27387657-20160103203252

Okay, I think I found it. One of my mods, made by Draco18s, generates random artifacts AND structures throughout the biomes. I think that's what's causing the crash. THename of the mod is Unique Artifacts, if you need to patch it.

Link

http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1291999-unique-artifacts-powerful-randomly-generated-items