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', '74hvf1ktthcr1d2ei4embhm7n2', '18.222.184.135', '1718726316', '1718726316', '/index.php/cat/admin/images/icons/templates/xtc5/img/admin')

[XT SQL Error]