the world goes out?? I see lava and animals but not dirt stone or anything?

Put the summary of the bug you're having here
I see no dirt stone trees etc
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. the world is fine until I smash something, dirt,tree,coal,cobblestone something breakable
2. ...
3. ...