upon launching the game will load a few bars before foing into the error reporting screen with this mod reported as the cause.
Here's the log.
crash-2023-04-12_16.12.14-fml.txt

This issue has nothing to do with Nature's Aura. It's an exception caused by a mixin called imm_ptl.mixins.json:common.chunk_sync.MixinChunkMap_C, and Nature's Aura just happened to be the first one to load the class that caused the issue.

I assume you have a mod installed that is called something like "Chunk Sync" or something that has the mod id imm_ptl, which is the one that is causing this issue!

Judging by the id it's Immersive Portals (for Forge).