Describe the bug you're experiencing

during loading i got that error but it did not crash but i know these erros can lead to them

Reproducability

use my modpack lmk if you need or want the zip

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.21.1

Modloader version

Neoforge

Logs

https://gist.github.com/Thunderrock424242/ee28dc13499d068935ba8f77a0dbaf61

That is some crash of biolithe/terrablender, nothing in that log hints at structure essentials