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', 'e0b8c360c155d663af017c49fcc38a85', '18.219.112.111', '1713271472', '1713271472', '/advanced_search.php?XTCsid=1ac6c2897c9e1517fbc2b6cff40eabd3')

[XT SQL Error]