was looking through the craftring recipes of chests in JEI until i hit the page with some item from Ender Storage. game instantly crashed with this log:
LOG
Log should contain all information needed

EDIT: actually now that i tested a bit it also happens with Chicken chunks with the same error

Backdate forge, apparently some new changes are breaking things..

how far back? can you name a version?

it works, thanks!

MinecraftForge/MinecraftForge#5170 Was just fixed in forge. Update to the very latest, or back a few builds.