After carrying out all the installation points, the camera is detected but does not display an image anywhere, I tried several times to reinstall everything according to the instructions, but there is no result, in applications the camera is detected but does not give an image

After carrying out all the installation points, the camera is detected but does not display an image anywhere, I tried several times to reinstall everything according to the instructions, but there is no result, in applications the camera is detected but does not give an image
