Update app.py

app.py

@@ -1142,7 +1142,7 @@ def fetch_and_store_data():
         
 
 def fetch_and_store_data_market():
-    latest_doc = collection.find_one(sort=[("Reported Date", -1)])
+    latest_doc = market_price_data.find_one(sort=[("Reported Date", -1)])
     if latest_doc and "Reported Date" in latest_doc:
         latest_date = latest_doc["Reported Date"]
         st.write("Latest Date: ", latest_date)