my game froze up

Put the summary of the bug you're having here

*What I expected to happen was it not to frieze up
Describe what you thought should happen here
It not to freeze up
*What actually happened was Describe what happened here When I put my tablet in sleep mode then came back to it later it was frozen up
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Load a world put deveice in sleep mode leave for 5 or more minutes
3. Then come back to the world and the world will freeze