Will not allow chat

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
TO chat on multiplayer with another player
What actually happened was...:
Describe what happened here
IT closed out the game and gave me an error code
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...press t,
type a message
send the chat message by pressing enter
MInecraft then shutsdown

3. ...