Log: https://paste.dimdev.org/nozesufapi.mccrash

I get a chest with loot table (command /give @s minecraft:chest 1 0 {BlockEntityTag:{LootTable:"minecraft:chests/abandoned_mineshaft"}}), place on the ground and opened. When i tried to get torches from that the crash happened.

It appears that minecraft doesn't like accessing an uninitialized chest on the clientside. This error is occurring because the loot tables don't exist clientside, and so they NPE.

This line: https://github.com/Vazkii/Quark/blob/c09dab8115888e4c11f852a4257081e18636105f/src/main/java/vazkii/quark/management/capability/ShulkerBoxDropIn.java#L44

must not be run on a client if the loot table != null.

This bug, as it turns out, is in ARL. Fun times.

ARL? sorry dont remember what this means

Nevermind, but if you will not fix should i file an issue in AutoRegLib side?

I did fix it. VazkiiMods/AutoRegLib@7a49fb8