Crashes After Loading World and Mods

What is the issue? Ive been trying to solve this all day. Thank you!

Well for one, as far as I’m aware OTG is not compatible with sponge. Most people who want to have OTG generate, remove sponge, and then pre generate the world, then remove OTG and add back sponge.

On top of that, I know that they were very recently a few generation bugs fixed, so if you continue to have these issues after moving OTG, I’d try upgrading to the latest API 7 sponge first