DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at AjaxControlToolkit.ExtenderControlBase.GetScriptDescriptors(Control targetControl)
at System.Web.UI.ExtenderControl.System.Web.UI.IExtenderControl.GetScriptDescriptors(Control targetControl)
at Telerik.Web.UI.ProxyScriptControl.GetChildScriptDescriptorsRecursive(Control parent, ArrayList scriptDescriptors)
at Telerik.Web.UI.ProxyScriptControl.GetChildScriptDescriptorsRecursive(Control parent, ArrayList scriptDescriptors)
at Telerik.Web.UI.ProxyScriptControl.GetChildScriptDescriptorsRecursive(Control parent, ArrayList scriptDescriptors)
at Telerik.Web.UI.ProxyScriptControl.GetScriptDescriptors()
at System.Web.UI.ScriptControlManager.RegisterScriptDescriptors(IScriptControl scriptControl)
at Telerik.Web.UI.ProxyScriptControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.UpdatePanel.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.UpdatePanel.Render(HtmlTextWriter writer)
at Telerik.Web.UI.OurUpdatePanel.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.PageRequestManager.RenderFormCallback(HtmlTextWriter writer, Control containerControl)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
at System.Web.UI.HtmlFormWrapper.System.Web.UI.IHtmlForm.RenderControl(HtmlTextWriter writer)
at System.Web.UI.PageRequestManager.RenderPageCallback(HtmlTextWriter writer, Control pageControl)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at DotNetNuke.Framework.PageBase.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)