modified csv in app.py file

src/app/app.py

@@ -156,9 +156,9 @@ if button:
 
     st.metric('Predicted Sale', value=model.predict(processed_data))
     # predictions = model.predict(process_data)
-    csv_file = hist_df
-    check_csv(csv_file, data)
-    history = pd.read_csv(csv_file)
+    # csv_file = hist_df
+    check_csv(hist_df, data)
+    history = pd.read_csv(hist_df)
     with st.expander('Download Input History'):
         # new_history = history.iloc[1:]
         st.dataframe(history)