Hi @ARov477, welcome to the forum 
The camera settings and sdp you’ve posted are the defaults, and the stream runs fine for me in VLC using those. Any chance you’ve already got the stream open somewhere else (e.g. you’ve opened it twice, or are already accessing it in QGroundControl)?
If not, does the stream work when you’re using QGroundControl? Otherwise you may have a damaged or unplugged camera. You can try plugging the camera directly into your computer and seeing if it appears in a camera application
By the way, I’ve edited your post so the gstreamer options, sdp file, and error message are in code blocks, which makes them easier to see clearly, and copy to test with. There are instructions for how to do that in the Formatting a Post/Comment section of the How to Use the Blue Robotics Forums post