My game crashes when playing on 1.9.3 and 1.9.4

What I thought was going to happen was...
I was going to play minecraft online.

What actually happened was...:
It crashed. Then i tried again and it crashed, etc.

Steps to Reproduce:
1. Set it to 1.9.3 or 1.9.4
2. Play multiplayer.
3. It will cash not long after. (Between 30 seconds and 10 minutes)