Every Time I Try to Record, I See the Message: "An Encoder Error Occurred While Recording"

[Sunflowers26]

Hello, this is my first time using Obs, and every time I try to record I get the encoder error message.
I don't know if I'm doing things right..

here's my log:

https://obsproject.com/logs/yZsmOyJ8A4Dmq7S6