To Reproduce
I started the game, but the game crashed back to the launcher before the Mojang logo could even come up.

Crash Report
crash-2021-06-11_22.10.52-client.txt

I've stopped bundling Cloth API to avoid some version conflicts, you'll need to install this yourself alongside the mod. I did apparently forget to mark this on curseforge, apologies.

That fixed it. Thank you!