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', 'fo1k9ggrfatakhpg5b37qpmos6', '3.80.129.195', '1711665756', '1711665756', '/login.php?XTCsid=fo1k9ggrfatakhpg5b37qpmos6')

[XT SQL Error]