401 UNAUTHORIZEDException occured:Thread was being aborted. at System.Threading.Thread.AbortInternal() at System.Threading.Thread.Abort(Object stateInfo) at System.Web.HttpResponse.AbortCurrentThread() at Microsoft.SharePoint.Utilities.SPUtilityInternal.SendResponse(HttpContext context, Int32 code, String strBody, String strContentType, Dictionary`2 headers) at Microsoft.SharePoint.Utilities.SPUtilityInternal.Send401(HttpContext context) at Microsoft.SharePoint.Utilities.SPUtility.IfNecessarySend401(HttpContext context, SPIisSettings iisSettings, Boolean isSOAP, Boolean isBrowserRequest) at Microsoft.SharePoint.Utilities.SPUtility.HandleAccessDenied(HttpContext context) at Microsoft.SharePoint.Utilities.SPUtility.HandleAccessDenied(Exception ex) at Microsoft.SharePoint.Library.SPRequest.GetWebMetainfo(String bstrUrl) at Microsoft.SharePoint.SPWeb.get_AllProperties() at OID.SharePoint.PageNotFoundSetup.PageNotFoundHttpModule.ProcessRequest(Object sender, EventArgs e)