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', '1v817lha57fikadk4ng8s11ak7', '3.142.250.114', '1713945100', '1713945100', '/login.php?XTCsid=1v817lha57fikadk4ng8s11ak7')

[XT SQL Error]