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', 'a52ce072450b9c16af08f1f5df1e4a45', '216.73.216.3', '1767368518', '1767368518', '/product_info.php/info/p1828_Fiji-5-Satellitenbild.html')

[XT SQL Error]