diff --git a/core/apps/orders/views/party.py b/core/apps/orders/views/party.py
index 7d20895..59111e6 100644
--- a/core/apps/orders/views/party.py
+++ b/core/apps/orders/views/party.py
@@ -35,5 +35,4 @@ class PartyListApiView(generics.GenericAPIView):
     def get(self, request):
         parties = self.get_queryset()
         serializer = self.serializer_class(parties, many=True)
-        return Response(serializer.data, status=200)
-    
\ No newline at end of file
+        return Response(serializer.data, status=200)
\ No newline at end of file
diff --git a/core/apps/products/serializers/product.py b/core/apps/products/serializers/product.py
index 267185f..420322b 100644
--- a/core/apps/products/serializers/product.py
+++ b/core/apps/products/serializers/product.py
@@ -37,7 +37,7 @@ class ProductSerializer(serializers.Serializer):
         if not unity:   
             raise serializers.ValidationError("Unity not found")
         if data.get("sub_folder_id"):
-            sub_folder = SubFolder.objects.filter(id=data['sub_folder_id'])
+            sub_folder = SubFolder.objects.filter(id=data['sub_folder_id']).first()
             if not sub_folder:
                 raise serializers.ValidationError("Sub Folder not found")
             data['sub_folder'] = sub_folder