Two days ago I was playing normally on my own aternos Minecraft server. No problems.
Yesterday when I tried to join the server, it said
"Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: Index: 27, size: 5"
I thought it was a small problem that would go away.
Today, it still says the same thing. How can I fix this?