What Feature Types Apply to This Bug?

Entity

Other Type

No response

What Type of Bug Is This?

Crash

Mod Loader

Fabric

Mod Loader Version

0.16.9

The Aether Version

1.5.4

Is This Bug a Conflict With Another Mod?

Potentially Accessories 1.1.0-beta, tclayer 3.10.0 or Artifacts 12.0.5

Client Log

https://gist.github.com/lexiccn/b6679400c8c4da6ee4097df4915f28ca

Crash Report (if applicable)

https://gist.github.com/lexiccn/f99251950c88b3451a1426417a3be574

Steps to Reproduce

Not entirely sure, occurred just while players were walking around the overworld.

Before running into this error however I changed:
Aether 1.5.1 -> Aether 1.5.4
Added Accessories 1.1.0-beta (previously it was using it from Aether directly presumably)
Removed Trinkets, added tclayer 3.10.0 (to allow for Trinkets from Artifacts mod to work with Aether without deletions)

What You Expect To Happen

Nothing of note

What Actually Happened

Server crashed suddenly when entity ticked

Additional Details

Is almost certainly related to Accessories given the references to entity equipment and the changes made to cause this.

Requested to report the bug from the Discord server.

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.