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', '2i3a0k8qjfi9p7vuegjlk4soa5', '18.119.143.52', '1746773768', '1746773768', '/product_info.php?info=p53_802394-Tauben-Futterautomat-2-5-kg.html')

[XT SQL Error]