System.FormatException: Input string was not in a correct format.
   at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)
   at Dynamicweb.Analytics.Utilities.ValueConverter._Lambda$__289(String a0, NumberStyles a1, IFormatProvider a2)
   at Dynamicweb.Analytics.Utilities.ValueConverter.Convert(Object value, Type targetType)
   at Dynamicweb.Modules.Searching.SmartSearch.LuceneProductsSmartSearch.TryConvertValue(String value, Type typeValue, Object& outValue)
   at Dynamicweb.Modules.Searching.SmartSearch.LuceneProductsSmartSearch.FetchRuleData(SmartSearchRule rule, String& fieldName, Type& fielType, SmartSearchRuleOperator& operatorRule, Boolean& isRange, Object[]& values)
   at Dynamicweb.Modules.Searching.SmartSearch.LuceneProductsSmartSearch.ComposeQuery(SmartSearchRulesGroup rulesGroups)
   at Dynamicweb.Modules.Searching.SmartSearch.LuceneProductsSmartSearch.GetSearchQueryCriteria(SmartSearchRulesGroupCollection QueryRules)
   at Dynamicweb.Modules.Searching.SmartSearch.LuceneProductsSmartSearch.OnExecuteQuery(Int32 ResultsLimit, SmartSearchRulesGroupCollection QueryRules, SmartSearchSortInfo[] SortParams)
   at Dynamicweb.Modules.Searching.SmartSearch.SmartSearch.GetResult[T]()
   at Dynamicweb.eCommerce.Frontend.Frontend.FillProductsBySmartSearches(ProductCollection& Products, String[] SmartSearchIDs)
   at Dynamicweb.eCommerce.Frontend.Frontend.List(String groups)
   at Dynamicweb.eCommerce.Frontend.Frontend.EcomRender()
   at Dynamicweb.eCommerce.Frontend.Frontend.GetContent()
   at Dynamicweb.Frontend.Content.getModule(DataRow& ParagraphRow)