Update app.py

app.py

@@ -191,7 +191,8 @@ def main():
                         st.sidebar.markdown(get_table_download_link(filename), unsafe_allow_html=True)
 
         
-        if st.button('💬 Chat'):
+        #if st.button('💬 Chat'):
+        if st.session_state.text_content:
             st.write('Reasoning with your inputs...')
             response = chat_with_model(st.session_state.text_content, ''.join(list(document_sections)))
             st.write('Response:')