https://pastebin.com/TVjTNBzB

@TelepathicGrunt

I need more info. You say you are on fabric but your log shows quilt which is not the same as fabric.

And I need to know if you were editing cartographer or wandering trader map trades. Or have another mod that does

I'm not altering trades, but I have several mods that add their own trades.

It happens when generating a world.

https://gist.github.com/Sunconure11/4cc26acf72b0b5817058d36f2d010ac5

I would like to have the modpack if you can export it for me to download. You likely have a mod that is adding a null instead of an empty list for a trade level. Meaning a mod's profession or trade is broken really. They should have an empty list for every trade level. Never null

It's a modpack of my own making. Of note is that two mods are using either builds yet to be released to the public, or have a custom fix of my own to solve some issues with other mods. I will send you a copy via Discord, as a result.

It's also a pretty decent-sized pack, but me and one other person are working on making it more manageable.

It's been sent.

[05/11/2023 21:59:26 PM] [Server thread/ERROR] RepurposedStructures ResourceKey[minecraft:villager_profession / minecraft:nitwit]=nitwit --- 3 --- {2=[com.jetpacker06.CreateBrokenBad.register.VillagerTrades$$Lambda$30927/0x0000000804c40a28@2a898fe2], 1=[]} --- [com.jetpacker06.CreateBrokenBad.register.VillagerTrades$$Lambda$30929/0x0000000804c40400@3b7e99ca]

Seems like someone is adding trades to nitwits but they skipped trade level 0 which then breaks my mod. Since you can't trade with nitwits, seems like a bug with that Create Broken Bad mod.

Create Jetpack is releasing an update now to not add trades to Nitwits. Please update Create Jetpack and see if that resolved this problem