Game crash every time, I tried choosing a kit on a minecraft server.

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
I expected to happen was I going to choose a kit on a minecraft server.

What actually happened was...:
Describe what happened here
The game crashed every time i tried choosing a kit.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Log onto minecraft.
3. click on multiplayer and click on add server.
4. the ip is us1-public.minez.net
5. I went to Shortbow game (SB) and click on a 'New Game' sign.
6. It give you a feather.
7. Right click on the feather and the crash will happen.