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', 'buusnsccme24btl8is15no3h34', '3.140.186.241', '1713526017', '1713526017', '/login.php?XTCsid=buusnsccme24btl8is15no3h34')

[XT SQL Error]