System.NullReferenceException: Object reference not set to an instance of an object.
   at ArticleHelper.getFeaturedMediaThumbnail(IPublishedContent article) in c:\inetpub\ValleyCMS\App_Code\ArticleHelper.cs:line 38
   at ASP._Page_Views_MacroPartials_PartnerLogos_cshtml.Execute() in c:\inetpub\ValleyCMS\Views\MacroPartials\PartnerLogos.cshtml:line 20
   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) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 24
   at Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult) in D:\a\1\s\src\Umbraco.Web\Mvc\ControllerExtensions.cs:line 74
   at Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content) in D:\a\1\s\src\Umbraco.Web\Macros\PartialViewMacroEngine.cs:line 149
   at umbraco.macro.LoadPartialViewMacro(MacroModel macro) in D:\a\1\s\src\Umbraco.Web\umbraco.presentation\macro.cs:line 1376
   at umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId) in D:\a\1\s\src\Umbraco.Web\umbraco.presentation\macro.cs:line 368
   at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(macro m, IDictionary`2 parameters, page umbracoPage) in D:\a\1\s\src\Umbraco.Web\UmbracoComponentRenderer.cs:line 138
   at ASP._Page_Views_Partials_grid_editors_macro_cshtml.Execute() in c:\inetpub\ValleyCMS\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) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 24
   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 c:\inetpub\ValleyCMS\Views\Partials\Grid\Editors\Base.cshtml:line 20