What we do

System.NullReferenceException: Object reference not set to an instance of an object.
   at Umbraco.Web.PublishedContentExtensions.Value(IPublishedContent content, String alias, String culture, String segment, Fallback fallback, Object defaultValue) in D:\a\1\s\src\Umbraco.Web\PublishedContentExtensions.cs:line 137
   at ASP._Page_Views_MacroPartials_CallToAction_cshtml.Execute() in C:\home\site\wwwroot\Views\MacroPartials\CallToAction.cshtml:line 42
   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 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   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 98
   at Umbraco.Web.Macros.MacroRenderer.<>c__DisplayClass17_0.<ExecuteMacroOfType>b__0() in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 342
   at Umbraco.Web.Macros.MacroRenderer.ExecuteProfileMacroWithErrorWrapper(MacroModel macro, String msgIn, Func`1 getMacroContent, Func`1 msgErr) in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 313
   at Umbraco.Web.Macros.MacroRenderer.ExecuteMacroWithErrorWrapper(MacroModel macro, String msgIn, String msgOut, Func`1 getMacroContent, Func`1 msgErr) in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 272
   at Umbraco.Web.Macros.MacroRenderer.ExecuteMacroOfType(MacroModel model, IPublishedContent content) in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 339
   at Umbraco.Web.Macros.MacroRenderer.Render(MacroModel macro, IPublishedContent content, IDictionary pageElements) in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 245
   at Umbraco.Web.Macros.MacroRenderer.Render(String macroAlias, IPublishedContent content, IDictionary`2 macroParams) in D:\a\1\s\src\Umbraco.Web\Macros\MacroRenderer.cs:line 215
   at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(IPublishedContent content, String alias, IDictionary`2 parameters) in D:\a\1\s\src\Umbraco.Web\UmbracoComponentRenderer.cs:line 131
   at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(Int32 contentId, String alias, IDictionary`2 parameters) in D:\a\1\s\src\Umbraco.Web\UmbracoComponentRenderer.cs:line 102
   at Umbraco.Web.UmbracoHelper.RenderMacro(String alias, IDictionary`2 parameters) in D:\a\1\s\src\Umbraco.Web\UmbracoHelper.cs:line 178
   at ASP._Page_Views_Partials_grid_editors_Macro_cshtml.Execute() in C:\home\site\wwwroot\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 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in C:\home\site\wwwroot\Views\Partials\grid\editors\Base.cshtml:line 20