1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '3ebc5ca8ac58fed3d27cfd3d7a3f9087', '216.73.216.191', '1758202897', '1758202897', '/products_new.php')

[XT SQL Error]