ArmorPlus Version:
1.12.2-11.8.1.27-beta

TheDragonLib Version:
1.12.2-5.2.0

Forgelin Version:
1.6.0

MinecraftForge Version:
forge-14.23.1.2558

Minecraft Version:
1.12.2

(Optional) Just Enough Items (JEI) Version:
1.12.2-4.8.4.130

Client or Server?:

• Client
• Server

Crash Report (via. Pastebin):
https://hastebin.com/iqakizumag.txt

What happens / happened?:
The game locks up and crashes.

How can I reproduce it?:
This was an attempt to craft coal armour, so it should in theory be reproducible that way.

Which recipe specifically did you try?
Is it caused by the coal boots recipe?

None specifically, it crashed before or as I was trying to place a coal block into the middle-left slot when there was already one in the top-left slot. The intention was to make the chestplate, but two coal blocks on top of each other is a part of every single one.

Alrighty, found the issue. Will release a fix in a few minutes/hours. will also improve the performance of the recipes, to reduce some issues.

Thanks for the report, I released a version to fix this issue, if the issues continious to happen, please create a new issue ticket!
Link to version armorplus-11.8.2.28-beta