have an error when trying to connect to LAN server with mods

[F0RZera 0]

I made a LAN server with my friends with some mods on forge 1.16.3. We were playing for 3 weeks and it was ok, but after we tried to upgrade to a new version we got this problem. Even after opening the save before an upgrade we still had this error.

mods list: 

astikor carts, biomes o plenty, voxelmap, guard villagers, jei and simplefarming.

We also tried to download the same mods and forge version but it still didn't work.

[diesieben07 7695]

Post logs from server and client.

[F0RZera 0]

by log you mean debug.log?

[diesieben07 7695]

Yes

[F0RZera 0]

debug.log

[diesieben07 7695]

Quote

[23ÿíâ2021 18:40:33.737] [Render thread/ERROR] [net.minecraftforge.fml.network.FMLHandshakeHandler/FMLHANDSHAKE]: Missing registry data for network connection:
    minecraft:block: biomesoplenty:barley

Make sure you have the same mod versions on server and client and they are configured correctly.

[F0RZera 0]

Versions are the same, but what does configured mean? Also same error happens to my other friend.

[diesieben07 7695]

Please post the server debug.log as well.

[F0RZera 0]

Sorry that I am late, wasn't at home. This one is an attempt to join that I made right now.

 

debug.log

[diesieben07 7695]

I guess talk to the Biomes O Plenty people then. This should not be happening if the mod is properly made.

[F0RZera 0]

Ok thanks