It Wont Stop Crashing And I Already Tried Reinstalling It

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 Was Supposed To Open My World

What actually happened was...:
Describe what happened here It Crashed When I Pushed On The World Save

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Open Minecraft
3. Open A World It Crashes