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Error executing template "Designs/tvilum/ecom/product/partials/tvilum-add-to-cart.cshtml"System.ArgumentNullException: Value cannot be null.Parameter name: keyat System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)at System.Collections.Generic.Dictionary`2.get_Item(TKey key)at CompiledRazorTemplates.Dynamic.RazorEngine_925689d20dba45d388a5b3b840ebeb9d.Execute() in E:\Solutions\Tvilum\Files\Templates\Designs\tvilum\ecom\product\partials\tvilum-add-to-cart.cshtml:line 59at 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.b__0(TextWriter writer)at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)at Dynamicweb.Rendering.Template.RenderRazorTemplate()
  1	@inherits ViewModelTemplate< EspressoProduct >  2	@using Co3.Espresso.Base.Extensions  3	@using Co3.Espresso.Website.Models.FrontEnd.Ecommerce  4	@using Co3.Tvilum.Utilities.Extensions  5	@using Co3.Tvilum.Website.Models.Frontend.Ecommerce  6	@using Dynamicweb.Core  7	@using Dynamicweb.Rendering  8  9	@*<form action="/system/data/cart" class="e-product-form tvilum-add-to-cart-form js-e-product-form js-e-product-form-addtocart" method="post"> 10	  <input name="CartCmd" type="hidden" value="Add"> 11	  <input name="ProductID" type="hidden" value="@Model.Id"> 12	  <input name="VariantID" type="hidden" value="@Model.VariantId"> 13	  <input name="Redirect" type="hidden" value=""> 14	  <input name="Name" type="hidden" value="@Model.Name"> 15	  <input name="Number" type="hidden" value="@Model.Number"> 16	  <input name="Price" type="hidden" value="@Model.Price.Value.ToJavaScript()"> 17	  <input name="CurrencyCode" type="hidden" value="@Model.Price.CurrencyCode"> 18 19	  <div class="d-flex"> 20	    <div class="js-custom-number-input tvilum-number-input-group input-group"> 21	      <div class="input-group-prepend" id="minus-btn"> 22	        <span class="input-group-text">-</span> 23	      </div> 24	      <input name="Quantity" class="form-control" id="qty_input" type="text" value="1" min="1"> 25	      <div class="input-group-append" id="plus-btn"> 26	        <span class="input-group-text">+</span> 27	      </div> 28	    </div> 29	    <div class="tvilum-add-to-cart-button pl-1"> 30	      <button class="btn btn-success" type="submit">@Translate( "eCom Product - Add To Cart - Button", "Add to cart" )</button> 31	    </div> 32	  </div> 33 34	</form>*@ 35 36 37 38	<form action="/system/data/cart" class="e-product-form js-e-product-form js-e-product-form-addtocart py-1" method="post"> 39	  <input name="CartCmd" type="hidden" value="Add"> 40	  <input name="ProductID" type="hidden" value="@Model.Id"> 41	  <input name="VariantID" type="hidden" value="@Model.VariantId"> 42	  <input name="Quantity" type="hidden" value="1"> 43	  <input name="Redirect" type="hidden" value=""> 44	  <input name="Name" type="hidden" value="@Model.Name"> 45	  <input name="Number" type="hidden" value="@Model.Number"> 46	  <input name="Price" type="hidden" value="@Model.Price.Value.ToJavaScript()"> 47	  <input name="CurrencyCode" type="hidden" value="@Model.Price.CurrencyCode"> 48 49 50	  @if ( Model.VariantGroups.Any() ) 51	  { 52	    @*<div class="border-bottom border-top mb-1 py-1">*@ 53	      foreach ( KeyValuePair< string, EspressoVariantGroup > variantGroup in Model.VariantGroups ) 54	      { 55	        string variantInputFieldId = string.Format( "{0}_{1}", Model.Id, variantGroup.Value.Id ); 56	        if ( variantGroup.Value.Id == "Colors" ) 57	        { 58	          string selectedVariantCombinationKey = variantGroup.Value.SelectedOptionId; 59	          EspressoProduct selectedVariantCombination = Model.VariantCombinations[ selectedVariantCombinationKey ]; 60	          if ( variantGroup.Value.Options.Count() > 1 ) 61	          { 62	            <div class="dropdown tvilum-product-variant-dropdown js-tvilum-product-variant-dropdown"> 63	              <a class="btn btn-secondary dropdown-toggle" href="#" role="button" id="dropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 64	                @Translate("eCom Product - Select Another Color - Label", "Vælg anden farve") 65	              </a> 66	              <div class="dropdown-menu p-0 form-control" aria-labelledby="dropdownMenuLink" data-variant-group-id="@variantGroup.Value.Id" name="@variantGroup.Value.Id" id="@variantInputFieldId"> 67	                @foreach ( KeyValuePair<string,string> variantOption in variantGroup.Value.Options ) 68	                { 69	                  TvilumProduct variantCombination = (TvilumProduct) Model.VariantCombinations[ variantOption.Key ]; 70	                  bool isSelected = variantOption.Key == variantGroup.Value.SelectedOptionId; 71	                  string disabled = isSelected ? "disabled" : string.Empty; 72	                  string backgroundImage = string.Empty; 73	                  if ( variantCombination.ImageDetails.Any() ) 74	                  { 75	                    backgroundImage = variantCombination.ImageDetails[ 0 ].AsTvilumProductImageUrl().Xsmall; 76	                  } 77 78	                  <label for="@string.Format("{0}-{1}", variantOption.Key, variantGroup.Value.Id)" class="@variantOption.Key @variantGroup.Value.SelectedOptionId border-bottom d-flex py-1 m-0 dropdown-item @disabled" data-after-content="@Translate("eCom Product - Select - Label", "Vælg")"> 79	                    <input type="radio" @disabled id="@string.Format("{0}-{1}", variantOption.Key, variantGroup.Value.Id)" value="@variantOption.Key" name="@variantGroup.Value.Id" data-variant-group-id="@variantGroup.Value.Id" class="d-none js-e-product-form-variant-group-input required" @( isSelected ? "checked" : string.Empty ) /> 80	                    <span class="mr-2 thumb" style="background-image: url('@backgroundImage');"></span> 81	                    <span class="align-self-center"> 82	                      <span class="d-block text-nowrap">@variantCombination.Name - @variantCombination.TvilumColourNames.Replace(",", " / ")</span> 83	                      <small class="d-block">@variantCombination.Number</small> 84	                    </span> 85	                  </label> 86	                } 87	              </div> 88	            </div> 89	          } 90	        } 91	        else 92	        { 93	          <div class="form-group"> 94	            <label for="@variantInputFieldId" class="font-weight-bold form-control-label">@variantGroup.Value.Name</label> 95	            <select class="form-control js-e-product-form-variant-group-input required" data-variant-group-id="@variantGroup.Value.Id" name="@variantGroup.Value.Id" id="@variantInputFieldId"> 96	              <option disabled value=""></option> 97	              @foreach ( KeyValuePair< string, string > variantOption in variantGroup.Value.Options ) 98	              { 99	                bool isSelected = variantOption.Key == variantGroup.Value.SelectedOptionId;100	                <option value="@variantOption.Key" @( isSelected ? "selected" : string.Empty )>@variantOption.Value</option>101	              }102	            </select>103104	          </div>105	        }106107108109110111	      }112	      @*<button class="btn btn-secondary js-e-variant-button-reset" type="button">@Translate( "eCom Product - Variants Reset - Button", "Reset" )</button>*@113	   @* </div>*@114	  }115116	  @*<button class="btn btn-success" type="submit">@Translate( "eCom Product - Add To Cart - Button", "Add to cart" )</button>*@117	</form>118