Warmtepomp installeren

Error executing template "Designs/Warmtethuis/Includes/FAQ/Category.cshtml"
System.NullReferenceException: Object reference not set to an instance of an object.
   at CompiledRazorTemplates.Dynamic.RazorEngine_279871c4f8544315b90fc101d8457cc1.Execute() in D:\inetpub\wwwroot\www.warmgarant.nl\Files\Templates\Designs\Warmtethuis\Includes\FAQ\Category.cshtml:line 15
   at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.<RunCompile>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @using System.Web.Helpers;
  2     @using Dynamicweb.Content
  3     @using Warmgarant.Shop.Repository.Helpers
  4     @inherits Dynamicweb.Rendering.ViewModelTemplate<Warmgarant.Shop.Models.ViewModels.FaqCategoryModel>
  5     @{
  6         var seoPage = SeoHelper.GetVirtualPageViewFaq(
  7             System.Web.HttpContext.Current.Request.Url.Scheme,
  8             System.Web.HttpContext.Current.Request.Url.Authority,
  9             Dynamicweb.Frontend.PageView.Current().SearchFriendlyUrl,
 10             Model.Title);
 11     }
 12     <div class="faq-cat">
 13         <div class="faq-category faq-category--single">
 14             <div class="faq-category__questions">
 15                 @foreach (var question in Model.Questions)
 16                 {
 17                     <div class="faq-category__question @(Model.QuestionId == question.Id ? "faq-category__question--active" : "")" data-image="@question.Image" data-qid="@question.Id">
 18                         <h5 class="faq-category__question__title" data-title="@SeoHelper.CreateSeoSafeTitle(question.Question)" data-toggle>
 19                             @question.Question
 20                         </h5>
 21                         <div class="faq-category__question__answer">
 22                             @if (!string.IsNullOrEmpty(question.Image))
 23                             {
 24                                 <img class="faq-category__question__answer__image" src="@question.Image" />
 25                             }
 26                             @question.Answer
 27                         </div>
 28                     </div>
 29                 }
 30             </div>
 31         </div>
 32     </div>
 33     
 34     @SnippetStart("JavaScriptBottom")
 35     <script>
 36     
 37         // SEO Virtuel Pageview on item click
 38         function TrackPageViewFaqItem(element) {
 39             var title = $(element).data("title");
 40             if (typeof title !== "undefined" && title !== "") {
 41                 SEO.trackPageView("@seoPage/" + title);
 42             }
 43         }
 44     
 45         $(function() {
 46     
 47             var toggleClass = 'faq-category__question--active';
 48             var $toggleElements = $('[data-toggle]').css('cursor', 'pointer');
 49     
 50             $toggleElements.innovadisToggleClass({
 51                 className: toggleClass,
 52                 onBefore: function (evt) {
 53     
 54                     $toggleElements
 55                         .not(evt.target)
 56                         .parents('.' + toggleClass)
 57                         .removeClass(toggleClass);
 58     
 59                     // SEO Virtuel Pageview on item click
 60                     TrackPageViewFaqItem(evt.target);
 61                 }
 62     
 63             });
 64     
 65             $("#page-heading").html("@Translate(string.Format("FaqCategory_{0}", Model.Title), Model.Title)");
 66     
 67             // SEO Virtuel Pageview
 68             var seoPage = "@seoPage";
 69             @if (Model.QuestionId > 0)
 70             {
 71                 <text>
 72             var title = $('div[data-qid="@Model.QuestionId"]').find("h5").attr("data-title");
 73             if (typeof title !== "undefined" && title !== "") {
 74                 seoPage += "/";
 75                 seoPage += title;
 76             }
 77             </text>
 78             }
 79             SEO.trackPageView(seoPage);
 80     
 81         });
 82     </script>
 83     @SnippetEnd("JavaScriptBottom")