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', '1334e879b84375420b7b836b047a24e8', '216.73.216.198', '1752879505', '1752879505', '/product_info.php/info/p1767_Cape-Verde-3-Satellite-Image.html')

[XT SQL Error]