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', '388f165ff2c0d2480d66cdf4b859c327', '216.73.216.191', '1758160410', '1758160410', '/product_info.php/language/de/info/p1571_Germany-Satellite-Image.html')

[XT SQL Error]