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', 't9fim7anpuippn8frk172n9o03', '3.145.58.169', '1713469291', '1713469291', '/login.php?XTCsid=t9fim7anpuippn8frk172n9o03')

[XT SQL Error]