Crash log: https://paste.feed-the-beast.com/view/3079df34
Forge:36.2.4
AmbientSounds_v3.1.9_mc1.16.5

This issue has been reported several times and I have no idea how this occur. Try to reinstall the mod? Just make sure to get the mod from curseforge. Could never reproduce it on my own.

Will close this issue for now. No idea if it's still there.