when i hit play it takes 30 second the crash report comes up

Put the summary of the bug you're having here
crash reports
What I expected to happen was...:
Describe what you thought should happen here
put me in to the game
What actually happened was...:
Describe what happened here
a white screen came up was crash report
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...reset minecraft
3. ...rest your computer