Solved Error joining Server (Internal Exception)

Discussion in 'Spigot Help' started by Mikknirman, Jan 11, 2020.

  1. Hello!
    I recently opened my closed server again and updated it to 1.15.1 version from 1.14. I updated plugins as well to 1.15+.

    Although everything seemes fine in the console, I keep getting error trying to enter the server.
    It looks in the game like this:
    Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBounsException: Index: 27, Size: 5

    and in cosole:
    / lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException

    I know this might be a typical problem, but maybe someone has a solution, because I can not find it from the internet. Other servers work for me, so I do not understand if it's my computer problem or server's panel problem.

    If anyone has any idea what might have happened, then I would be happy for getting an answer.

  2. Are others able to join the server?

    Is your in game name longer than 16 characters?
  3. It happened because of old version of ProtocolLib. Removing it fixed the problem