OBS No desktop or headphone?

I once again have a problem: Yesterday obs has recorded the sound of minecraft and teamspeak or discord wonderful and today (I have not changed anything), it just is not more. My microphone is recorded and my voice, but the rest no more. What should I do?

You click on Settings - Audio - Desktop Audio Device and select your headphones and see if you have not muted the desktop sound.

I have everything but I found out that if I disable the microphone the headphone sound is recorded and if it is on only the micro is recorded

Funny