Illuminate \ Contracts \ Filesystem \ FileNotFoundException

i am not able to view the video content in page shows me error as Illuminate \ Contracts \ Filesystem \ FileNotFoundException so how to get the video??

 public function get_video()
    {
        $fileContents = Storage::disk('public')->get("/storage/videos/Sc.png");
        $response = Response::make($fileContents, 200);
        $response->header('Content-Type', "video/mp4");

        return $response;

}