Error executing template "Designs/Swift-v2/Paragraph/Swift-v2_Accordion.cshtml"
System.NullReferenceException: Object reference not set to an instance of an object.
   at CompiledRazorTemplates.Dynamic.RazorEngine_75b7ed891abb45ae976941f5ae3d2ab4.ExecuteAsync()
   at RazorEngine.Templating.TemplateBase.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineCore.RunTemplate(ICompiledTemplate template, TextWriter writer, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineService.Run(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.DynamicWrapperService.Run(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.Run(IRazorEngineService service, String name, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass23_0.<Run>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at RazorEngine.Templating.RazorEngineServiceExtensions.Run(IRazorEngineService service, String name, Type modelType, Object model, DynamicViewBag viewBag)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.ParagraphViewModel>
  2     
  3     @{
  4     	string title = Model.Item.GetString("Title");
  5     	var accordionItems = Model.Item?.GetItems("Accordion_Items") ?? Enumerable.Empty<Dynamicweb.Frontend.ItemViewModel>().ToList();
  6     }
  7     
  8     <div class="accordion h-100 position-relative item_@Model.Item.SystemName.ToLower()" id="accordion-@Pageview.CurrentParagraph.ID">
  9     	@if (!string.IsNullOrEmpty(Model.Item.GetString("Title")) && !Model.Item.GetBoolean("HideTitle"))
 10     	{
 11     		string titleFontSize = Model.Item.GetRawValueString("TitleFontSize", "h2");
 12     		string headingLevel = Model.Item.GetString("HeadingLevel", "h2");
 13     		string headingLevelStart = $"<{headingLevel} class=\"{titleFontSize} mb-4\">";
 14     		string headingLevelStop = $"</{headingLevel}>";
 15     
 16     		@headingLevelStart
 17     			@Model.Item.GetString("Title")
 18     		@headingLevelStop
 19     	}
 20     	@foreach (var item in accordionItems)
 21     	{
 22     		<div class="accordion-item">
 23     			<h2 class="accordion-header" id="heading-@Pageview.CurrentParagraph.ID-@item.Id">
 24     				<button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapse-@Pageview.CurrentParagraph.ID-@item.Id" aria-expanded="false" aria-controls="collapse-@Pageview.CurrentParagraph.ID-@item.Id">
 25     					@item.GetString("Title")
 26     				</button>
 27     			</h2>
 28     			<div id="collapse-@Pageview.CurrentParagraph.ID-@item.Id" class="accordion-collapse collapse" aria-labelledby="heading-@Pageview.CurrentParagraph.ID-@item.Id" data-bs-parent="#accordion-@Pageview.CurrentParagraph.ID">
 29     				<div class="accordion-body mb-0-last-child opacity-75">
 30     					@item.GetRawValueString("Content")
 31     				</div>
 32     			</div>
 33     		</div>
 34     	}
 35     	<div id="@Model.ID" class="user-select-none position-absolute top-0" style="scroll-margin-top:var(--header-height,150px)"></div>
 36     </div>
 37