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', 'fe4gadip6botpi235qobcmop90', '3.138.141.202', '1713248551', '1713248551', '/login.php?XTCsid=fe4gadip6botpi235qobcmop90')

[XT SQL Error]