quick fix

app.py

@@ -35,10 +35,11 @@ data["month"] = pd.to_datetime(data["month"])
 data = data.sort_values(by=["cohort_first_product", "cohort_first_month", "month"])
 
 
-def cohort_predict(start_date, cohort_start, product):
+def cohort_predict(cohort_start, start_date, product):
     
     new_seq = generate_new_data(data, cohort_start, start_date, product, model, X_columns_to_drop, 12)
     hist_seq = get_sequence(data, cohort_start, product)
+    print(hist_seq.head())
 
     fig = plot_example_from_case(hist_seq, new_seq, 25, product)
     fig.canvas.draw()