Version Information

Please fill out the following information. Replace each x with a number:

Minecraft Version: 1.21
Fabric Loader Version: 0.15.11-1.21
Fabric API Version: 0.100.8
Nostalgic Tweaks Version: 2.0.0-beta.900

Describe the Bug

A clear and concise description of what the bug is (e.g., startup crash, runtime crash, or something not working as intended).

Just randomly crashing when loading certain blocks sometimes

Crash Report

If applicable, please include a link to a complete crash report. You can use Gist (https://gist.github.com) to create this link. These reports can be found in .minecraft/crash-reports.

(https://gist.github.com/LCS980/a804475bcc9ed0c09824237f909d93e9)

Bug Context

If applicable, add some context to the bug. If a crash occurred while you were in-game, what happened before the crash? For example, "I fell from a high place and before the hurt sound could play the game crashed."

I'm just doing normal stuff like walking or flying with my elytra and it just crashes randomly

Screenshots

If applicable, add screenshots to help explain your problem.

You're using an outdated N.T version. Use beta.901 for 1.21. If you still encounter this crash using that version then please reopen this issue.