Internal Exception: io.netty.handler.codec.DecoderException:
java.lang.NullPointerException: Cannot invoke "net.minecraft.nbt.CompoundTag.contains(String, int)" because "nbt" is null

This problem has been haunting me since version 1.20.1 of Forge. The error appears when my friends and I enter each other's world. (But it happens that everything works without errors, for this we restart the launcher and log on to the server)
Below I will attach a list of mods.

I don't see power loader in your mod list. Which version of power loader are you using? Can you update to the latest version and retry?

No. This error appears again.

Everything worked, it was necessary to create a new world. Thank you very much! (of course, I didn't expect you to be the one to help me)

Do you have a log for this error? How exactly did you see this error text?

On my server this issue also persists for some of my players, I had Slice and Dice but I removed it and it's still a problem