Update app.py

app.py

@@ -433,6 +433,7 @@ with tab3:
         combo_file = pd.concat([cpt_proj, flex_proj], ignore_index=True)
     
     with col2:
+        optimize_container = st.empty()
         if st.button('Optimize'):
             for key in st.session_state.keys():
                 del st.session_state[key]