1366 - Incorrect integer value: '' for column `abtecsho_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', 'lqfh44crhvqm5vfa4bop42lih7', '18.188.91.70', '1746787020', '1746787020', '/shop_content.php?coID=7')

[XT SQL Error]