I'm getting a crash involving every time I open my inventory or enter 3rd person mod.
crash-2021-06-19_19.30.37-client.txt
I have the crashlog.

Sorry about that, this will be fixed in the next update. In the meantime, you can play the game if you add thecodex6824.thaumicaugmentation.core.transformer.TransformerRenderCape to the DisabledTransformers config option. It should be in general options.