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', 'siotro75951iop302t2emftcu3', '18.190.217.213', '1718727871', '1718727871', '/index.php/cat/admin/images/icons/templates/xtc5/img/logo.png')

[XT SQL Error]