Error:

java.lang.IndexOutOfBoundsException: Index 2 out of bounds for length 2

Crash report: bytebin.lucko.me/ORapFb9xQ6

Crash log: bytebin.lucko.me/ceAgTFapPq

Someone else found that it's caused by Inspecio, I'll look into it

It's a simple fix, I just can't call appendTooltip from another item

Can you be more specific? When does this happen?

@MoriyaShiine when you start the game, before it opens the menu window

Can you binary search (disable half of your mods until it stops crashing) and figure out which one is causing bewitchment to crash? You have a lot installed