1366 - Incorrect integer value: '' for column `pella-ware`.`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', 'cjh8u9rf63nb53rqjm28f3i0v7', '3.16.70.101', '1713610987', '1713610987', '/login.php?XTCsid=cjh8u9rf63nb53rqjm28f3i0v7')

[XT SQL Error]