Exception of type 'System.Web.HttpUnhandledException' was thrown. Object reference not set to an instance of an object. -    at System.Web.UI.Control.GenerateAutomaticID()
   at System.Web.UI.Control.AddedControl(Control control, Int32 index)
   at System.Web.UI.ControlCollection.Add(Control child)
   at SavoySalonSupplies.Site.laodNav() in D:\Development\_NgageClients\SavoySalonSupplies\Website\SavoySalonSupplies\Site.Master.cs:line 41
   at SavoySalonSupplies.Site.Page_Load(Object sender, EventArgs e) in D:\Development\_NgageClients\SavoySalonSupplies\Website\SavoySalonSupplies\Site.Master.cs:line 20
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at _NgageCore.Classes.NgageMasterPage.OnLoad(EventArgs e) in D:\Development\NgageCms\_NgageCore\Classes\NgageMasterPage.cs:line 48
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)