well you are playing mincraft and you turn off your screen and then when you turn it back on it freezes

Put the summary of the bug you're having here
When you turn off your scree well playing minecraft and you turn it back on it freezes on you
What I expected to happen was...:
To keep on playing mcpe

What actually happened was...:
i went in the game and it froze on me
t*Steps to Reproduce:*
1. Play for a bit
2. ...turn off the screen
3. ...and turn it back on and it well freez