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', '8de136ecd37cbe3e7d07099e2b64364d', '216.73.216.20', '1772065465', '1772065465', '/product_info.php/info/p2846_Satellitenbild-Poster-Konfigurator.html?refID=2')

[XT SQL Error]