Update app.py

app.py

@@ -146,7 +146,7 @@ if __name__ == '__main__':
         st.session_state.messages.append({"role": "user", "content": question})
     
         #if 'yes' in q_relevant.lower():
-        if st.session_state['previous_response'] == "Sorry I may not have answer to this question.":
+        if st.session_state['previous_response'] != "Sorry I may not have answer to this question.":
             st.session_state.last_message_failed = False
             with st.status("Retrieving results..."):
                 #top_table_names = table_search(question, topk=1)['table'].tolist()