Muted audio

Hello all! My audio went mute while I was listening back, but I STILL see the wave from the sound that should be there. How can I or is there a way to unmute my audio that somehow got muted?

How were you listening to it?

I was listening through my computers built in speakers.

Do you have any working audio playback on your computer?
Are you using a USB device for recording?

I just have about 5 seconds of audio that is muted. I can hear everything else.

listening further this whole portion of my project has been jumbled up some ways and chopped and screwed. Do you know what causes this?