Update: It works without optifine, but playing without optifine is just like eating french fries without salt, but they'll be shitty. It's the same with optifine, especially as they allow you to play custom texture packs, not to mention shaders.

Sorry for the mistakes in advance, I used Google Translate

But I don't want to play without optifine

Yeah remove optifine.

Unfortuantely Optifine breaks a feature in Forge which this mod utilises