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', 'gajipfrgph5rbfd2f7ohqcon14', '44.204.34.64', '1711652755', '1711652755', '/login.php?XTCsid=gajipfrgph5rbfd2f7ohqcon14')

[XT SQL Error]