System.NullReferenceException: Object reference not set to an instance of an object. at ASP._Page_Views_MacroPartials_Gallery_cshtml.Execute() in E:\Sophia Website\Sophia Websites\04. My Khe 2 Hotel\bk 26032020\Roberto\Views\MacroPartials\Gallery.cshtml:line 27 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.Mvc.WebViewPage.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) at Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult) at Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content) at umbraco.macro.LoadPartialViewMacro(MacroModel macro) at umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId) at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(macro m, IDictionary`2 parameters, page umbracoPage) at ASP._Page_Views_Partials_grid_editors_Macro_cshtml.Execute() in E:\Sophia Website\Sophia Websites\04. My Khe 2 Hotel\bk 26032020\Roberto\Views\Partials\grid\editors\Macro.cshtml:line 15 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.Mvc.WebViewPage.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in E:\Sophia Website\Sophia Websites\04. My Khe 2 Hotel\bk 26032020\Roberto\Views\Partials\grid\editors\Base.cshtml:line 20