1366 - Incorrect integer value: '' for column `hbl_shop`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', 'li8gk3h192tn23q362adiplfj1', '13.58.158.198', '1746966335', '1746966335', '/product_info.php?info=p72_802134-Obstpresse--Kartoffelpresse.html')

[XT SQL Error]