I did report it there. I think it is not wrong to ask in a forum full with IT- cracks for some help in a stream software related Problem, by asking them to have a quick glance at the crash report. The program called "WE Castamp" uses OBS, obviously.
I am a housewife, living in Thailand and can't just ask my neighbor. With a little research I found out though, that it was a problem in the System, and solved the problem via windows defender security center, it told me to update a driver.
So thank you Koala, for your helpful post.