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', 'e81d1ceca79ed51cd8df6e3dde06aa53', '216.73.216.53', '1752100206', '1752100206', '/product_info.php/info/p3120_Turkey-Relief-Map.html')

[XT SQL Error]