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', 'escae6ce9qj96pg676pg3b61o5', '3.142.187.179', '1746789172', '1746789172', '/shop_content.php?coID=23')

[XT SQL Error]