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', '2jbi3vta0cs8mfo2t1b4ih0ao0', '216.73.216.127', '1761433042', '1761433042', '/shop_content.php/coID/98/product/Sponsoring')

[XT SQL Error]