Error When Saving Video To Camera Roll

I am working on enabling the option for users to save a video from a post in a social media app to their cameral roll. I am trying to use PHPhotoLibrary to perform the task similarly to how I did the functionality for saving images and gifs. However, when I try to perform the task with the code as is, I get the following errors:

Error Domain=PHPhotosErrorDomain Code=-1 "(null)"
The operation couldn’t be completed. (PHPhotosErrorDomain error -1.)

The implementation is as follows:

Button(action: {
    guard let videoURL = URL(string: media.link.absoluteString) else {
        print("Invalid video url.")
        return
    }
    
    PHPhotoLibrary.shared().performChanges({
        PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: videoURL)
        print("Video URL: \(videoURL)")
    }) { (success, error) in
        if let error = error {
            debugPrint(error)
            print(error.localizedDescription)
        } else {
            print("Video saved to camera roll!")
        }
    }
}) {
    Text("Save Video")
    Image(systemName: "square.and.arrow.down")
}

The video URL is successfully fetched dynamically from the post, but there's an issue with storing it locally in the library. What am I missing?