The gameplay is fine except every time that i type in the chat on a server and it isnt a command my minecraft will crash.

Put the summary of the bug you're having here

What I expected to happen was...:
The words that I typed in the chat on a server were going to show up in chat

What actually happened was...:
My minecraft crashed and it didn't type it in the chat

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...