I am following the facebook docs here https://developers.facebook.com/docs/video-api/guides/publishing/ to publish a video to a particular facebook page but I keep getting errors.

Here is my code:

    try {
        let mediaPostParams = new URLSearchParams();
        let mediaUploadPath = `https://graph.facebook.com/${pageId}/videos`
        mediaPostParams.append('url', "www.somelocationwherevideoishosted.com/vido.mp4");
        mediaPostParams.append('access_token', pageAccessToken);
        let response = await axios.post(mediaUploadPath, mediaPostParams);
      }
    catch (e) {
        console.log(e); //I keep getting the error message: 'www-authenticate': 'OAuth "Facebook Platform" "invalid_request" "There was a problem uploading your video file. Please try again."',
    }

All I keep getting is this error:

'www-authenticate': 'OAuth "Facebook Platform" "invalid_request" "There was a problem uploading your video file. Please try again."',

I have no idea where I am going wrong.

Any insights would be greatly appreciated. Thank you.