Error executing template "Designs/Swift/eCom/ProductCatalog/ProductViewDetail.cshtml"
System.ArgumentNullException: Value cannot be null.
Parameter name: key
at System.Collections.Concurrent.ConcurrentDictionary`2.TryGetValue(TKey key, TValue& value)
at Dynamicweb.Caching.DictionaryCache`2.GetCacheResult(IEnumerable`1 keys)
at Dynamicweb.Caching.ServiceCache`2.GetCache(IEnumerable`1 keys)
at Dynamicweb.Caching.ServiceCache`2.GetCache(TKey key)
at Dynamicweb.Ecommerce.ProductCatalog.ViewSettingsBaseCurrencyBase`1.GetCurrency()
at Dynamicweb.Ecommerce.ProductCatalog.ViewSettingsBaseCurrencyBase`1.GetPriceContext()
at Dynamicweb.Ecommerce.ProductCatalog.ViewEngine.GetPrice(PriceViewModelSettings settings, IList`1 products, Boolean& pricesHasBeenPrepared, Object lock, Lazy`1 priceInfo)
at Dynamicweb.Ecommerce.ProductCatalog.ViewEngine.<>c__DisplayClass3_2.<BulkCreateView>b__49()
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at CompiledRazorTemplates.Dynamic.RazorEngine_d078e9b796bf4a2390eff7f759c4fe7f.Execute() in D:\dynamicweb.net\Solutions\Dynamicweb\hctswift.cloud.dynamicweb-cms.com\files\Templates\Designs\Swift\eCom\ProductCatalog\ProductViewDetail.cshtml:line 53
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     @inherits ViewModelTemplate<ProductViewModel>
  2     @using Dynamicweb.Rendering
  3     @using Dynamicweb.Ecommerce.ProductCatalog
  4     @using Dynamicweb.Core
  5  6     @{
  7     	string metaDescription = string.IsNullOrEmpty(Model.MetaDescription) ? Model.Name : Model.MetaDescription;
  8  9     	Pageview.Meta.AddTag($"<meta property=\"og:image\" content=\"{Dynamicweb.Context.Current.Request.Url.Scheme}://{Dynamicweb.Context.Current.Request.Url.Host}{Model.DefaultImage.Value}\">");
 10     	Pageview.Meta.AddTag($"<meta property=\"og:image:alt\" content=\"{Model.Name}\">");
 11     	Pageview.Meta.AddTag($"<meta property=\"og:description\" content=\"{metaDescription}\">");
 12 13     	Pageview.Meta.AddTag("twitter:image", Model.DefaultImage.Value);
 14     	Pageview.Meta.AddTag("twitter:image:alt", Model.Name);
 15     	Pageview.Meta.AddTag("twitter:description", metaDescription);
 16     }
 17 18     @{
 19     	if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
 20     	{
 21     		Dynamicweb.Context.Current.Items["ProductDetails"] = Model;
 22     	}
 23     	else
 24     	{
 25     		Dynamicweb.Context.Current.Items.Add("ProductDetails", Model);
 26     	}
 27 28     	bool isLazyLoadingForProductInfoEnabled = Dynamicweb.Core.Converter.ToBoolean(Dynamicweb.Context.Current.Items["IsLazyLoadingForProductInfoEnabled"]);
 29     	if (isLazyLoadingForProductInfoEnabled)
 30     	{
 31     		string showPricesWithVat = Pageview.Area.EcomPricesWithVat.ToLower();
 32     		bool neverShowVat = string.IsNullOrEmpty(showPricesWithVat);
 33     		bool hasVariantId = !string.IsNullOrEmpty(Model.VariantId);
 34     		string variantIdParam = hasVariantId ? $"/{Model.VariantId}" : "";
 35     		string priceFilledProperties = $"Price,PriceFormatted{(showPricesWithVat == "false" && !neverShowVat ? ",PriceWithVat,PriceWithVatFormatted" : "")}";
 36     		string productInfoFeed = $@"/dwapi/ecommerce/products/{Model.Id}{variantIdParam}
 37     	?UserId={Converter.ToString(Pageview.User?.ID)}
 38     	&LanguageId={Pageview.Area.EcomLanguageId}&CurrencyCode={Pageview.Area.EcomCurrencyId}&CountryCode={Pageview.Area.EcomCountryCode}&ShopId={Pageview.Area.EcomShopId}
 39     	&FilledProperties=Id,Price,PriceBeforeDiscount,StockLevel,VariantInfo,NeverOutOfstock,Prices
 40     	&PriceSettings.ShowPricesWithVat={Pageview.Area.EcomPricesWithVat}
 41     	&PriceSettings.FilledProperties={priceFilledProperties}
 42     	&getproductinfo=true";
 43     		Dynamicweb.Context.Current.Items["ProductInfoFeed"] = productInfoFeed;
 44 45     		<script type="module">
 46     			swift.LiveProductInfo.init();
 47     		</script>
 48     	}
 49     }
 50 51     <script>
 52     	gtag("event", "view_item", {
 53     		currency: "@Model.Price.CurrencyCode",
 54     		value: @Model.Price.ToStringInvariant(),
 55     		items: [
 56     		{
 57     			item_id: "@Model.Number",
 58     			item_name: "@Dynamicweb.Core.Encoders.HtmlEncoder.JavaScriptStringEncode(Model.Name)",
 59     			currency: "@Model.Price.CurrencyCode",
 60     			price: @Model.Price.ToStringInvariant(),
 61     			discount: @Model.Discount.ToStringInvariant()
 62     		}
 63     		]
 64     	});
 65     </script>
 66 67     <script>
 68     	window.addEventListener('load', function (event) {
 69     		swift.Video.init();
 70     	});
 71     </script>
 72