Problem When Playing a scene?

Can someone help me with this problem...?

I'm having a lot of trouble playing my game through the editor, when I build it though it plays fine.

I did a lot in one intermission between playing the scene so I don't know what I did to cause it, it's just whenever I click "Play Scene" I get music and butchered audio from the game. I get a black screen and the window fades from "Not Responding" to a black screen, that is not responsive most of the time.

Thanks if anyone can help.