QUIK RPS ошибка Поле "Цена" не установлено

              Order o = new Order();
              Portfolio p = new Portfolio() { Name = oi.Account };
              o.Type = OrderTypes.Rps;
              o.RpsInfo = new RpsOrderInfo()
              {
                  
                  Partner="SPBFUT"
              };
              o.Volume = Convert.ToDecimal(oi.Volume);
              o.Direction = mainOrdersDirection;
              o.Portfolio = p;
              o.Price = price;
              o.Security = new Security() { Class = "PSFUT", Code = security.Code };
              if (matchRef != null)
              {
                  o.RpsInfo.MatchRef = matchRef;
              }
              trader.RegisterOrder(o);