The game crashes the moment it opens up with FerriteCore installed on Fabric 1.20.1. This seems to be an issue between FerriteCore and Supplementaries as removing FerriteCore fixes it and re-adding FerriteCore and removing Supplementaries fixes it too. I'm using Supplementaries v2.6.5 and FerriteCore v6.0.0.
It doesn't generate a crash report, so here's the latest.log: https://mclo.gs/mF1ah9K
