Update app.py

app.py

@@ -446,7 +446,8 @@ with tab2:
                 st.session_state.stack_freq['Exposure'] = st.session_state.stack_freq['Freq']/(1000)
 
         with st.container():
-            st.dataframe(st.session_state.Sim_Winner_Frame)
+            if 'Sim_Winner_Frame' in st.session_state:
+                st.dataframe(st.session_state.Sim_Winner_Frame)
             
         with st.container():
             tab1, tab2, tab3, tab4 = st.tabs(['Overall Exposures', 'SP Exposures', 'Team Exposures', 'Stack Size Exposures'])