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', '234dbd02dce5b76cb17e3bf1c0fcb420', '216.73.216.191', '1758185760', '1758185760', '/product_info.php/info/p2885_Mozambique-Relief-Map.html')

[XT SQL Error]