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', 'f01b3b8a52a24a55272ed4f0f07c26ff', '3.14.15.94', '1714134153', '1714134153', '/product_info.php/info/p1722_Isle-of-Man-Satellitenbild.html')

[XT SQL Error]