1366 - Incorrect integer value: '' for column `CP_as15`.`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', 'gc57d7gu8ps9vqr0vlep06jgg4', '52.14.56.234', '1738994903', '1738994903', '/index.php?XTCsid=8km4iag7d9anolhh9c02p13aq2&cat=c661_Universal-Ladeger--t.html')

[XT SQL Error]