the game crashes on 2 laptops and 1 pc

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
i thought it should work.
What actually happened was...:
Describe what happened here
I tried to download it as it wasn't letting me play in my browser and it kept on saying that the game had crashed.
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...press download on the minecraft menu and press run.
3. ...it will load and you need to put in your account details and it will say that the game has crashed