Is there an existing issue for this?

• I have searched the existing issues.

Are you using the latest MineColonies Version?

• I am running the latest beta/release version of MineColonies for my Minecraft version.
  I am also running the latest versions of other mods that are part of my problem.

Did you check on the Wiki? or ask on Discord?

• I checked the MineColonies Wiki and made sure my issue is not covered there. Or I was sent from discord to open an issue here.

What were you playing at the time? Were you able to reproduce it in both settings?

• Single Player
• Multi Player

Minecraft Version

1.21

MineColonies Version

1.1.1148-1.21.1-snapshot

Structurize Version

1.0.790-1.21.1-snapshot

Related Mods and their Versions

1. NeoForge: 21.1.206
2. MineColonies and dependency mods.

Current Behavior

1. Spam logs.

Expected Behavior

1. No spam.

Reproduction Steps

1. Create a new world (Client 1).
2. Open the LAN server.
3. Join to that LAN server (Client 2).
4. Check Client 1's logs.

Logs

Client 1(LAN Server): https://mclo.gs/yfTo9dj
Client 2: https://mclo.gs/OpdWXYX

Anything else?

No response

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These warnings come from out LootTableAnalyzer, but it's not actually our fault at all. According to the logs the underlying issue is the following:

java.lang.IllegalArgumentException: Can't find id for 'Reference{ResourceKey[minecraft:enchantment / minecraft:aqua_affinity]=Enchantment Aqua Affinity}' in map net.minecraft.core.Registry$1@2678a787

It seems to be checking certain loot tables that are referring to enchantments that no longer exist, whether that is valid or not I cannot say. I don't know if you have mods installed that were to remove all the vanilla enchantments, or you have a faulty loot table from a mod somewhere, but all I can say is that this isn't caused by us.

Define what spam please

It is a lot of Error serializing item stack warn, started at com.minecolonies.core.event.DataPackSyncEventHandler$ServerEvents.sendOnLogin(DataPackSyncEventHandler.java:138) in Client 1(LAN Server)'s log.

But I'm installed only MineColonies with dependency mods.
And created a new world without any datapacks.

he actually closed it haha, ITS NOT US, IT COULDN,T BE US

Might be related to one of these two mods:

https://www.curseforge.com/minecraft/mc-mods/notenoughrecipebook
https://www.curseforge.com/minecraft/mc-mods/client-crafting

I only started to have issues after adding them. Will edit/update if I get more results.