How Can I Solve This OBS Problem?

[Sage Parisian]

You need to add audio and video sources silly! You can either capture cameras, application windows, or whatever is on the desktop. You can then resize the sources to your liking. Same with audio sources

I've already done these, but when I start capturing, all I get is a black screen. However, one solution from this tutorial assisted me in resolving the problem. When I ran OBS as Administrator, it began capturing my gameplay. Thank you for your responses, mate.