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', 'b4709928a151defc1cc4bdb076aeca4c', '18.119.123.76', '1714102030', '1714102030', '/product_info.php?info=p255_Andr--Carol---Silhouetten.html&XTCsid=2e913f95d614b725a3e8a823e845d351')

[XT SQL Error]