Update app.py

app.py

@@ -714,7 +714,7 @@ with demo:
         column_values_unique = sorted(dataframe1.iloc[:, 3].unique())
         dataframe2 = pd.DataFrame({'Levels': column_values_unique})
         counts = {}
-        for value in test_merge.iloc[:, 3]:
+        for value in data.iloc[:, 3]:
             counts[value] = counts.get(value, 0) + 1
         dataframe2['Members'] = dataframe2['Levels'].map(counts)