I've been making my own mudpack so I can have all the mods I want. Everything is fine except the Caverns 2 mod. My game crashes when I create a world. I tried it on a mudpack with just that mod installed and it all works fine so I can only assume it's a conflict or something.
Here's what the crash log says(short version):
For some reason, My Minecraft has started crashing on world generation. I can't, for the life of me work out the issue. I;ve tried updating and downdating forge, removing mods and all sorts and I still get this:
https://pastebin.com/HPXNYMpz