Question / Help Black Preview When I try To record

[Rainrr]

When I open OBS, it doesn't show anything but black and then the GUI and everything.
When i record, same thing.
ill post a picture
I'm running on:

Problem:

I'm only going to use OBS to record and record system sound.
I'm using Audacity to record my voice with my (sister's) mic

 

[Rainrr]

Log: https://gist.github.com/eed6ae9a11dce1201e897b381afec045

 

[amsyar ZeRo]

@Rainrr Welcome!You forgot to put a source.Add it by pressing the "+" button in the Sources section and try Display Capture.