Modpack version:
latest

Java version:
curseforge's one

Description:
I was looking at a Basic Backpack craft and my friend was putting a blueprint inside an Engineer's workbench, then mc crashed

When did the crash happen?
^

Steps to reproduce:
idk

Minecraft crash report:
https://pastebin.com/DzhXnKHS

How much RAM did you dedicate to your client and how much RAM does your PC have?
10gb dedicated, i've 16

We're slowly phasing out the Iron Backpacks mod, because it has multiple issues and it's no longer being developed for 1.12.2.

We're replacing it with Simply Backpacks.

By removing the recipe for the Iron Backpacks in 2.2.0 (https://www.curseforge.com/minecraft/modpacks/divine-journey-2/files/3449256), this should be fixed now.