The game closes by itself

When I stop playing Minecraft and after a few minutes you open the game, it feels weird and then when you open a world, it crashes 4 or 3 times until you finally can open your world. ** 

Reproduce:

1. Start Minecraft.
2. Open a world.
3. Wait until the game closes for an error.

Observed Results:
The game crashes

Expected Results:
To don't have a crash

Screenshots/Videos attached

Notes: It's really annoying