Update app.py

app.py

@@ -208,7 +208,7 @@ if st.button("Generate Schedule"):
 
 # Schedule Viewing
 st.header("View Schedule")
-conference_selector = st.selectbox("Select conference to view schedule:", options=["All"] + [f"Conference {chr(65+i)}" for i in range(num_conferences)])
+conference_selector = st.selectbox("Select conference to view schedule:", options=["All"] + [f"Conference {chr(65+i)}" for i in range(st.session_state.num_conferences)])
 if st.session_state.schedule_df is not None:
     if conference_selector == "All":
         st.dataframe(st.session_state.schedule_df)