Update main.py

main.py

@@ -160,7 +160,10 @@ def forecast(monthly_sales):
 
 def process_product(product_name, data):
     full_trend = ""
-    sub_sku = data.loc[0, 'sub_sku'].copy()
+    try:
+        sub_sku = data.loc[0, 'sub_sku']
+    except KeyError:
+        sub_sku = "not provided"
     try:
         # Get today's date
         today = datetime.today().strftime('%Y-%m-%d %H:%M:%S')