diff --git a/app/api/services/web_contents.py b/app/api/services/web_contents.py
index 265237d..e8a361b 100644
--- a/app/api/services/web_contents.py
+++ b/app/api/services/web_contents.py
@@ -60,7 +60,7 @@ class WebContentsService(BaseService):
                     "added": membersSubResult.added,
                 }
 
-                if membersSubResult.colorstyle !='':
+                if membersSubResult.colorstyle is not None and  membersSubResult.colorstyle !='':
                     # is this a valid olor scheme
                     colorStyle = ProductsColorStyle.get_colorstyle_by_product_id_and_uid(membersSubResult.product_id, membersSubResult.colorstyle)
                     if colorStyle and colorStyle.color_style != '':