Joining server, Crash MineCraft

Put the summary of the bug you're having here

What I expected to happen was...:
Joining a server (mc.hypixel.net)

What actually happened was...:
Game shutdown, and crashed.

Steps to Reproduce:
1. Start MC
2. Join the server "mc.hypixel.net"
3. Wait to "Login"
4. Game crashes..

Steps to resolve:
1. Shutdown MC
2. Start MC
3. ReJoin the server
4. It works again