Why is this rendering weirdly

Hi everyone, I need help in fixing the issue about the rending of my next scene.
When i start the scene it shows how the game should look:

but when i start the game form the main menu toward that scene which is shown above it renders in a weird way.

I am using the onClick functions of the basic Button script within Unity to change scene. Need help in fixing this or any suggestions that might help with this problem. Any help will be appreciated, Cheers.

This is a lighting issue. Goto Window → Lighting → Settings then you will see an AutoGenerate field. You can either turn this off and bake the scene or you can make sure it has generated i believe.