Bug: <title>crash on startup

[heyoux]

What Feature Types Apply to This Bug?

Other (Please Describe)

Other Type

startup crash

What Type of Bug Is This?

Crash

Mod Loader

Neoforge

Mod Loader Version

21.1.177

The Aether Version

1.5.1-beta.3

Is This Bug a Conflict With Another Mod?

No response

Client Log

https://gist.github.com/heyoux/000a7b936b79fa69d0dd0d24a317ee6c

Crash Report (if applicable)

https://gist.github.com/heyoux/4b9e28ae60df238e71f2af0bdc427ea7

Steps to Reproduce

Game crashes when launching

What You Expect To Happen

Game launches

What Actually Happened

Game crashed

Additional Details

No response

Please Read and Confirm The Following

• I have confirmed this bug can be replicated without the use of Optifine.
• I have confirmed this bug is on the most recently supported version of Minecraft.
• I have confirmed the details provided in this report are concise as possible and does not contain vague information (ie. Versions are properly recorded, answers to questions are clear).
• I have confirmed this bug is unique and has not been reported already.
• If playing on a modpack, I have reported this bug to their issue tracker already.
• I have confirmed that I'm reporting a bug in The Aether I, not The Aether II.

[SHXRKIEgg]

I have this same issue but it was the Champions Unofficial mod causing it for me because disabling it made me able to launch the modpack but I dont see that this person has that mod so it could be another conflict