(I didn't save the latest.log file before reading the submission notes; I did, however, include two server crash reports on the problem:)

https://pastebin.com/wuAnu1Kn
https://pastebin.com/RXF3v4x1

Problem:
1.12 Forge server crashes when Burning Gem_stone reaches 0 durability.

Expected behaviour:
Server should not crash.

Steps to reproduce the problem:
Have a Burning Gem_stone in inventory (not hot bar) that reaches 0 while on forge 1.12 server.-