Improve error handling for CSV file names in app.py: add a try-except block to ensure robust retrieval of names from session state, enhancing application stability and user experience.

app.py

@@ -172,7 +172,10 @@ with tab1:
             # Initialize projections_df in session state if it doesn't exist
             # Get unique names from portfolio
             portfolio_names = get_portfolio_names(st.session_state['portfolio'])
-            csv_names = st.session_state['csv_file']['Name'].tolist()
+            try:
+                csv_names = st.session_state['csv_file']['Name'].tolist()
+            except:
+                csv_names = st.session_state['csv_file']['Nickname'].tolist()
             projection_names = projections['player_names'].tolist()
             
             # Create match dictionary for portfolio names to projection names
@@ -784,7 +787,7 @@ with tab2:
             with col1:
                 if st.button('Reset Portfolio', key='reset_port'):
                     del st.session_state['working_frame']
-                    
+
             with col2:
                 Contest_Size = st.number_input("Enter Contest Size", value=25000, min_value=1, step=1)