added error handling for response

app.py

@@ -101,8 +101,8 @@ if st.button("Submit"):
         st.write("Debug: User Query ->", query)
         with st.spinner("Processing..."):
             try:
-                response = agent.run(query)
-                st.write("Debug: Agent Response ->", response)
+                response = agent.invoke(query)
+                print(f'Response: {response}')
                 st.success("Response:")
                 st.write(response)
             except Exception as e: