[ArgumentNullException: Value cannot be null.
Parameter name: url]
System.Web.HttpResponse.Redirect(String url, Boolean endResponse, Boolean permanent) +9774464
page.GetRouteUrls(Int32 Id) +186
page.Page_Load(Object sender, EventArgs e) +102
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
System.Web.UI.Control.OnLoad(EventArgs e) +97
System.Web.UI.Control.LoadRecursive() +61
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693