getting "TypeError: incompatible index of inserted column with frame index " problem after clicking create league

[alpereneemr]

after i install program i click on create league i get typeerror what should i do

[twicedee]

Add group_keys=Flase on these functions; _compute_last_results, _compute_last_goals, _compute_last_results_with_margin, _compute_total_result_rate - i.e matches_df.groupby(['Season', team_column], group_keys=False, sort=False)...