i've tried playing multiplayer games and it bugged out and crashed my game i don't know why it happened i hope you can fix this thanks

Put the summary of the bug you're having here
i opened the cubecraft server then when i looked for games it crashed
What I expected to happen was...:
to just work normally and just go on with my minecraft day.

*What actually happened was...:*i went to a server and went to look for mini games then it crashed my game

Steps to Reproduce:
1. download the shaders mod
2.put the folder in minecraft
3. open minecraft and play multiplayer