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', '8e4ae2f344f78da7243d45f94eec905e', '216.73.216.8', '1758063752', '1758063752', '/product_info.php/info/p1642_South-Korea-Satellite-Image.html')

[XT SQL Error]