whenever i try to go on the server cubecraft my game crashes happens in 1.10.1 and 1.9 and 1.8 wich are pretty much all the versions i use and also happens in 1.11

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. launch up minecraft
2. click multyplayer then cubecraft
3. game crash