Update app.py

app.py

@@ -643,6 +643,6 @@ Available: {match.get('Available', 'N/A')}"""
 
 # Return the updated history state
 # This return statement MUST be inside the respond function definition
-    return "", chat_history # Return empty string for the input box, and the updated history
+#   return "", chat_history # Return empty string for the input box, and the updated history
 
-# -- 
+return "", chat_history + [(user_input, "Sorry, the application failed to load necessary components. Please try again later or contact the administrator.")]