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', '6a1a5ed2b701a10c6eda46142f2fbec4', '216.73.216.142', '1758258645', '1758258645', '/product_info.php/info/p1599_Elfenbeinkueste-Satellitenbild.html')

[XT SQL Error]