error minecraft internal exception: io.netty.handler.codec.decoderexception: java.lang.nosuchmethoderror: "float com.obliviussp.spartan.weaponry.item.crafting.itagcookingrecipe.m_43750_()"

version del juego: 1.20.1
version del mod: 3.1.2

Downgrade the version, the one that worked for me is 3.1.1.

That would work for now. But I've been looking at it from my end and I've been able to replicate the issue and fix it.
I'll roll out an update for it shortly.

The update is now live. Closing issue