1366 - Incorrect integer value: '' for column `shop_db3`.`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', '51fda17849eca8bbdd64691f1e1c2321', '18.234.55.154', '1711623811', '1711623811', '/advanced_search.php?XTCsid=34eb3af5dd83507b4e3d18340087e638')

[XT SQL Error]