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', '8f3785ab32bb9093848e6e17e894b708', '3.138.122.4', '1713605924', '1713605924', '/product_info.php?info=p246_Dream-Melody.html&XTCsid=41d98929aac05a618616c6b9cf3dbbec')

[XT SQL Error]