[Error Shown on image][1]

public ActionResult Index()
        {
            MemberData();
            return View();
        }

        [HttpPost]
        public JsonResult MemberData()
        {
            List<float> percentage = new List<float>();

            SqlConnection con = new SqlConnection(constr);
            SqlCommand cmd = new SqlCommand("select  COUNT(IsActive) as Total from MemberMaster where IsActive=1", con);
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;
            con.Open();

            DataTable mDT = new DataTable();
            SqlDataAdapter da = new SqlDataAdapter(cmd);

            da.Fill(mDT);

            ChartjsViewModel objModel = new ChartjsViewModel();

            TempData["vper"] = objModel.mPer = new List<int>();

            for (int i = 0; i < mDT.Rows.Count; i++)
            {

                objModel.mPer.Add(int.Parse(mDT.Rows[i]["Total"].ToString()));
            }
            con.Close();
            return Json(new { objModel.mPer});
        }

<script type="text/javascript">
    var myData = @Html.Raw(Newtonsoft.Json.JsonConvert.SerializeObject(TempData["vper"]));
        $(function () {
            var n = myData;
            setInterval(function () {
                if (n > 11) {
                    $.ajax({
                        type: "Post",
                        url: "/Testing/MemberData",
                        data: "{'Index':'" + n + "'}",
                        contentType: "application/json; charset=utf-8",
                        dataType: "json",
                        success: function (data) {
                            var value = data.d;
                            //alert(value);
                            $(".progress-bar").attr("aria-valuenow", value);
                            $(".progress-bar").attr("style", "width:" + value + "%");
                            $(".progress-bar").text(value + "%");
                        },
                        error: function (err) {
                            alert(err);
                        }
                    });
                    n++;
                }
            }, 2000);
        })
</script>