fix

@@ -366,6 +366,9 @@ public class KdsServiceImpl implements KdsService {
             .price(od.getPrice())
             .build()
       ).collect(Collectors.toList());
+      if (kdsOrderDetails.isEmpty()) {
+        continue;
+      }
       final var detailPriceList = curOrderDetails.stream()
           .map(d -> d.getPrice() * d.getCount())
           .collect(Collectors.toList());