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', '9ctcl7rbk3nmu6eb8dmj63ctg0', '18.221.53.201', '1718726520', '1718726520', '/index.php/cat/templates/xtc5/admin/images/icons/admin/images/icons/guest_status.gif')

[XT SQL Error]