Multiplayer crash. When i go to clickk multiplayer it just crashes. I dont get server lists or any thing it just shows the background then crashes

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
For me normaly to get my list of servers
What actually happened was...:
Describe what happened here
i clicked multiplayer and it just crashed one i clicked the button
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... You open minecraft
3. ...And click multiplayer