This error may occur if CausesValidation is set to true and databound controls (with custom validators based on the databound elements) have not yet been loaded.
System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Wyndham.Ccfs.Web.Application.Pages.SearchResultsPage.OnLoad(EventArgs e) in C:\TFS2015\Release 1.1\src\Website\Wyndham.Ccfs.Web.Application\Pages\SearchResultsPage.cs:line 27
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at Fusion.Web.Base.ToolKitPageBase`1.ProcessRequest(HttpContext _context) in C:\TFS2015\FusionSitecore\Sitecore\Fusion.Web.Base\Baseclass\Toolkitbase\ToolKitPageBase_Events.cs:line 53