{"Message":"The query specified in the URI is not valid. The string 'Aktiv' is not a valid enumeration type constant.","ExceptionMessage":"The string 'Aktiv' is not a valid enumeration type constant.","ExceptionType":"Microsoft.OData.ODataException","StackTrace":"   at Microsoft.OData.UriParser.MetadataBindingUtils.ConvertToTypeIfNeeded(SingleValueNode source, IEdmTypeReference targetTypeReference)\r\n   at Microsoft.OData.UriParser.BinaryOperatorBinder.PromoteOperandTypes(BinaryOperatorKind binaryOperatorKind, SingleValueNode& left, SingleValueNode& right, TypeFacetsPromotionRules facetsPromotionRules)\r\n   at Microsoft.OData.UriParser.ODataUriResolver.PromoteBinaryOperandTypes(BinaryOperatorKind binaryOperatorKind, SingleValueNode& leftNode, SingleValueNode& rightNode, IEdmTypeReference& typeReference)\r\n   at Microsoft.OData.UriParser.BinaryOperatorBinder.BindBinaryOperator(BinaryOperatorToken binaryOperatorToken)\r\n   at Microsoft.OData.UriParser.MetadataBinder.BindBinaryOperator(BinaryOperatorToken binaryOperatorToken)\r\n   at Microsoft.OData.UriParser.MetadataBinder.Bind(QueryToken token)\r\n   at Microsoft.OData.UriParser.FilterBinder.BindFilter(QueryToken filter)\r\n   at Microsoft.OData.UriParser.ODataQueryOptionParser.ParseFilterImplementation(String filter, ODataUriParserConfiguration configuration, ODataPathInfo odataPathInfo)\r\n   at Microsoft.OData.UriParser.ODataQueryOptionParser.ParseFilter()\r\n   at Microsoft.AspNetCore.OData.Query.FilterQueryOption.get_FilterClause()\r\n   at Microsoft.AspNetCore.OData.Query.Validator.FilterQueryValidator.Validate(FilterQueryOption filterQueryOption, ODataValidationSettings settings)\r\n   at Microsoft.AspNetCore.OData.Query.FilterQueryOption.Validate(ODataValidationSettings validationSettings)\r\n   at Microsoft.AspNetCore.OData.Query.Validator.ODataQueryValidator.Validate(ODataQueryOptions options, ODataValidationSettings validationSettings)\r\n   at Microsoft.AspNetCore.OData.Query.ODataQueryOptions.Validate(ODataValidationSettings validationSettings)\r\n   at Microsoft.AspNetCore.OData.Query.EnableQueryAttribute.ValidateQuery(HttpRequest request, ODataQueryOptions queryOptions)\r\n   at Microsoft.AspNetCore.OData.Query.EnableQueryAttribute.OnActionExecuting(ActionExecutingContext actionExecutingContext)"}