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', 'q9dh9sejpfj16irpmrkc4o06b4', '3.15.240.40', '1718727475', '1718727475', '/index.php/manu/m3_RS-Namibia.html/manufacturers_id/admin/images/product_images/templates/xtc5/buttons/russian/thumbnail_images/861_0.JPG')

[XT SQL Error]