Every time I type in chat, My game lags then after about 3 seconds, My games says "Minecraft has Crashed"

Put the summary of the bug you're having here

To send the message
I typed in chat and on every server I play on I get crashed game when I try to speak

I can't talk on any server
So on the Walls/And PvP game I can't talk with my Teammates! :,(
What happens before I get crashed!
1.First Type in Chat on server (Any server you choose)
2. Press "Enter Key"
3. Watch as you're game crashes!