Put the summary of the bug you're having here

What I expected to happen was...:
I opened up 2 servers, Mineplex and The Hive and they both have a blue screen and it takes me to the launcher with the crash report page and it says that the world's would not load. It is not every server but, I know it is Mineplex and The Hive
Describe what you thought should happen here
I would go into the servers.
What actually happened was...:
The screen turned to blue and exited me to the Minecraft launcher and the crash report page.

Steps to Reproduce:
1. Go into either Mineplex or The Hive multiplayer servers
2. The screen will turn blue
3. It will exit you to the launcher