IndexOutOfBoundsException on Bungee #912

Hello Spigot forums,

I've recently started using BungeeCord on my server, and whenever I take peek into my log for BungeeCord, I always notice that there is an error regarding an IndexOutOfBoundsException.

I'm not quite sure what this means, and it seems to have no effect on performance, but I'm positive about this and I would like to figure out what it means and how to fix it.

Any help would be appreciated!

http://paste.md-5.net/mimicorefe.avrasm

Thanks.