MC VERSION: 1.15.2
Forge: 31.2.0
Northern Compass: 1.15.2-1.0.0

Forge crashes at start

gist with the stuff

Try Forge 1.15.2-31.2.5 or higher

Thanks for the answer, it works now :)

Something I just noticed, the compass doesn't seem to point North if Quark's Compasses Work Everywhere feature is enabled
I have to disable their feature for this mod to work. Now I'm closing this for good.