Enhance column exclusion handling in 'Manage Portfolio' by adding error handling for multiselect options, ensuring robustness when columns are missing.

app.py

@@ -2022,7 +2022,10 @@ if selected_tab == 'Manage Portfolio':
                     with combo_size_col:
                         combo_size = st.selectbox("Combo Size", [2, 3], key='combo_size')
                     with columns_excluded_col:
-                        excluded_cols_extended = st.multiselect("Exclude Columns?", st.session_state['display_frame'].drop(columns=excluded_cols).columns, key='excluded_cols_extended')
+                        try:
+                            excluded_cols_extended = st.multiselect("Exclude Columns?", st.session_state['display_frame'].drop(columns=excluded_cols).columns, key='excluded_cols_extended')
+                        except:
+                            excluded_cols_extended = st.multiselect("Exclude Columns?", st.session_state['display_frame'].columns, key='excluded_cols_extended')
                     with combo_analyze_col:
                         submitted = st.form_submit_button("Analyze Combos")
                         if submitted: