No Playback - Getting Error Message!

When I press play, I get an error message: Error Opening Sound Device. Try changing the audio host, playback device and the project sample rate. I’m not sure how to change any of those things. Can anyone please direct me on how to change those three things so my tracks can play again? I tried re-installing Audacity and resetting settings but it’s still not playing.

Try changing the audio host, playback device and the project sample rate. I’m not sure how to change any of those things.

[u]Device Toolbar[/u]. Your playback device should usually be your regular speakers/soundcard.