So, I had just installed Minor Integrations and Additions (MIA) into my modpack and it crashed saying that it was an error from MIA.

I'm on 1.12.2 with the latest version of Forge.

Crash Report: https://paste.ee/p/yS1dN

Latest Log: https://paste.ee/p/I2ZDg

Duplicate of #33.

Should be fixed by ce8009e, update should be released soon.