Update app.py

app.py

@@ -413,9 +413,12 @@ def update_quantity():
 
         # Retrieve first matching record
         cart_item_id = cart_items[0]['Id']
-        base_price = cart_items[0]['Base_Price__c']
+        base_price = cart_items[0].get('Base_Price__c', 0)
         addons_price = cart_items[0].get('Add_Ons_Price__c', 0)
         print(base_price)
+
+        if base_price is None:
+            base_price = 0
         # Calculate new item price
         new_item_price = (base_price * quantity) + addons_price
         print(new_item_price)