Update app.py

app.py

@@ -45,7 +45,7 @@ def update_news():
         new_news = get_news()
         news_df = predict_news_category(old_news, new_news, interpreter, label_encoder, tokenizer)
         if news_df is None:
-            raise Exception('Could not generate category predictions')
+            raise Exception('Could not generate category predictions\nAborting the database insertion.\nNo documents are inserted into the collection.')
         news_json = [*json.loads(news_df.reset_index(drop=True).to_json(orient="index")).values()]
         db_write.insert_news_into_db(news_json)
     except Exception as e: