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', 'd264afd615b2239357f6d7f17bf4f67b', '216.73.216.191', '1758172048', '1758172048', '/product_info.php/language/de/info/p1515_Alaska-Satellite-Image.html')

[XT SQL Error]