The error is just that the mod makes the game crash.

Steps to reproduce:

I honestly don't know how to reproduce it because this error happens only on my computer but on my laptop that has the same mods same everything and it work.

What happens:
When I load the game this error happens it's at the time forge preinitialization the mods.
The Error:
The game crashed whilst there was a severe problem during mod loading that has caused the game to fail
Error: net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Chickens (chickens)

What you expected to happen:
I just expected the game to load normally.

Versions
Version of Chickens: 6.0.4
Version of Minecraft: 1.12.2
Version of Forge: 1.12.2-14.23.3.2655

The error is not due to other mods because the error happens even when it's the only mod.
Thanks.