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', '5737cb5d1ce5ed5d32bad03267f13fe1', '216.73.216.145', '1761244555', '1761244555', '/product_info.php/info/p1734_Ist-Faeroeer--3-Satellitenbild.html')

[XT SQL Error]