System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
at Dynamicweb.Ecommerce.Products.FieldDisplayGroups.FieldDisplayGroupService.SetLocalizations(IDictionary`2 result)
at Dynamicweb.Ecommerce.Products.FieldDisplayGroups.FieldDisplayGroupService.InitializeCache()
at Dynamicweb.Caching.DictionaryCache`2.InitializeCacheDictionary()
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at Dynamicweb.Caching.DictionaryCache`2.GetAllValuesInternal()
at Dynamicweb.Caching.ServiceCache`2.GetAllValues()
at Dynamicweb.Ecommerce.Products.FieldDisplayGroups.FieldDisplayGroupService.GetAll()
at Dynamicweb.Ecommerce.Products.FieldDisplayGroups.FieldDisplayGroupService.GetFrontendDisplayGroups()
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at Dynamicweb.Ecommerce.Frontend.Renderer.RenderFieldDisplayGroups(Product product, PriceInfo productPrice, Template fieldDisplayGroupsTemplate, RenderingContext renderingContext)
at Dynamicweb.Ecommerce.Frontend.Renderer.RenderProduct(Product product, Boolean extendedProperties, Template template, Int32 loopCounter, Boolean renderRelated, String productUrl, Int32 quantity, Int32 wishListId, Boolean renderPublicList, Boolean isRecursiveCall, Lazy`1 categoryFieldSorting, Int32 orderLineOfProductCount, RenderingContext renderingContext, String unitId)
at Dynamicweb.Ecommerce.Frontend.Renderer.RenderProduct(Product product, Boolean extendedProperties, String unitId)
at Dynamicweb.Ecommerce.Frontend.Frontend.EcomRender()
at Dynamicweb.Ecommerce.Frontend.Frontend.GetContent()
at Dynamicweb.Frontend.Content.GetModuleOutput(Paragraph paragraph, PageView pageview)