i am having a problem with one of my worlds. It wont load and it has been crashing, so i cant play on it. I hope you can fix it thanks

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...