处理您的请求时发生错误.MVC 4

我正在创建一个MVC 4应用程序,我有如下错误.

我尝试了很多东西,但我找不到问题所在.这是我的Controller源码

    public ActionResult Index(string EventId)
    {

        HttpCookie cookie = this.ControllerContext.HttpContext.Request.Cookies["User"];

        if (cookie != null)
        {
            string Type = (cookie["Type"] == null || cookie["Type"] == "") ? null : cookie["Type"].ToString();
            string Username = (cookie["Username"] == null || cookie["Username"] == "") ? null : cookie["Username"].ToString();
            ViewBag.Message = Type;
            ViewBag.Username = Username;


            try
            {
                string ReplaceEventID = EventId.Replace('-', '/');

                ViewBag.Message = ReplaceEventID;
                IEnumerable JobListRelatedToEvent = DBContext.Jobs.Where(x => x.EventId == ReplaceEventID);
                return View(JobListRelatedToEvent);
            }
            catch
            {
                return View();
            }
        }
        else
        {
            return RedirectToAction("Index", "Home");
        }
    }

更新: 当它在我的本地机器上运行时它工作正常,但在我发布到服务器后,我得到了这个错误.

谁能说出错是什么意思？