var filterBuilder = Builders<SubscriptionRepositorySubscriptionModel>.Filter;
        var statusFilter = filterBuilder.Where(x => x.SubscriptionStatus == (byte)SubscriptionStatus.Active);
        var dateFilter = filterBuilder.Where(x => x.UpcomingOrders.First().NextTargetDeliveryDate >= DateTime.UtcNow 
                                                  && x.UpcomingOrders.First().NextTargetDeliveryDate <= targetDeliveryDate);
        var filter = filterBuilder.And(statusFilter, dateFilter);
        if (!string.IsNullOrEmpty(country))
        {
            filter = filterBuilder.And(filter, filterBuilder.Where(x => x.ShippingAddress.CountryCode == country));
        }
        var result = await _subscriptionCollection.Distinct(x => x.CustomerId, filter).ToListAsync(); 

System.InvalidOperationException: First({document}{UpcomingOrders}.Select({document}{NextTargetDeliveryDate})) is not supported.\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.GetFieldExpression(Expression expression)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.TranslateComparison(Expression variableExpression, ExpressionType operatorType, ConstantExpression constantExpression)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.Translate(Expression node)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.TranslateAndAlso(BinaryExpression node)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.Translate(Expression node)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.Translate(Expression node, IBsonSerializerRegistry serializerRegistry)\r\n   at MongoDB.Driver.Linq.Linq2Implementation.Translators.PredicateTranslator.Translate[TDocument](Expression`1 predicate, IBsonSerializer`1 parameterSerializer, IBsonSerializerRegistry serializerRegistry)\r\n