Update app.py

app.py

@@ -446,7 +446,7 @@ with tab5:
     if binary31_file:
         df_31 = pd.read_csv(binary31_file, header=None)
         # Assume known ascending order and assign:
-        df_31.columns = [str(h) for h in mutation_site_headers_actual]
+        df_31.columns = [str(h) for h in mutation_site_headers]
         
         # Reorder:
         df_31 = df_31[[str(h) for h in mutation_site_headers]]