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', '755ba6c2d4d944d75cd6688cc2b4cfe1', '216.73.216.251', '1752522899', '1752522899', '/product_info.php/info/p1678_Djibouti-Satellite-Image.html')

[XT SQL Error]