Zoom Outh work on local but when i host on sarvar it not work in mvc5 c#

public ActionResult SignIn()
{
return Redirect(string.Format(ConfigurationManager.AppSettings[“AuthorizationUrl”], ConfigurationManager.AppSettings[“ClientId”], ConfigurationManager.AppSettings[“RedirectUrl”]));
}

    [HttpGet]
    public ActionResult OAuthRedirect(string code)
    {


        RestClient restClient = new RestClient();
        RestRequest request = new RestRequest();

        request.AddQueryParameter("grant_type", "authorization_code");
        request.AddQueryParameter("code", code);
        request.AddQueryParameter("redirect_uri", ConfigurationManager.AppSettings["RedirectUrl"]);
        request.AddHeader("Authorization", string.Format(AuthorizationHeader));

        restClient.BaseUrl = new Uri("https://zoom.us/oauth/token");
        var response = restClient.Post(request);

        if (response.StatusCode == System.Net.HttpStatusCode.OK)
        {
            System.IO.File.WriteAllText(ConfigurationManager.AppSettings["TokenFilePath"], response.Content);
            var token = JObject.Parse(response.Content);
            this.GetUserDetails(token["access_token"].ToString());
            return RedirectToAction("zoommeeting", "teacherschedulemanagement");
        }

        ViewBag.result = response;
        return View();

    }