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', 'd31f259d7760e10bccb81817872e3519', '216.73.216.150', '1762405048', '1762405048', '/product_info.php/info/p3388_Egypt-Relief-Map.html')

[XT SQL Error]