So i was trying to play through lan with my friend, we are playing All The Mods 8 Modpack and i get the error "Internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException" when i try to join the server.
Here's a link for the log file lines i think point to the error: https://pastebin.com/aivJvTpk
Please help me identify if a specific mod is causing this.