Hi, I've never seen this issue before. I am using a custom origins pack but this error seems to be about the mod itself. Never seen it before and have been using this pack for a long time. It was not modified recently. Most important looking bit pasted below.

Failure message: Origins (origins) encountered an error during the load_registries event phase
java.lang.ClassCastException: io.github.apace100.origins.registry.ModRegistriesArchitectury$CFBiome cannot be cast to net.minecraftforge.registries.IForgeRegistryEntry

crash-2021-12-11_11.41.46-fml.txt