Update app.py

app.py

@@ -243,7 +243,9 @@ if add_commissioner:
 
 # Schedule Generation
 if st.button("Generate Schedule"):
-    st.session_state.schedule_df['Date'] = pd.to_datetime(st.session_state.schedule_df['Date'])
+    st.session_state.schedule_df = create_schedule(num_teams, num_conferences, num_inter_games)
+    if st.session_state.schedule_df is not None:
+        st.session_state.schedule_df['Date'] = pd.to_datetime(st.session_state.schedule_df['Date'])
 
 
 # Schedule Viewing