1366 - Incorrect integer value: '' for column `magickland`.`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', '5r3m7ahmv928vvkh1tmhrv6l04', '3.16.75.9', '1718727584', '1718727584', '/index.php/manu/m3_RS-Namibia.html/manufacturers_id/templates/xtc5/admin/images/icons/templates/xtc5/img/favicn.png')

[XT SQL Error]