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', 'f814653b7c89c49402428d1a78783148', '3.143.0.157', '1714017958', '1714017958', '/advanced_search.php?XTCsid=f88a86bf4ffc9ff2be90f468933efb62')

[XT SQL Error]