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', '0gp7inu8ta46iqen3su45c7q73', '3.14.255.254', '1718727364', '1718727364', '/index.php/manu/m3_RS-Namibia.html/manufacturers_id/images/product_images/thumbnail_images/templates/xtc5/img/images')

[XT SQL Error]