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', '20532bd75927e2f48ed0fb4ad1c2dab9', '216.73.216.108', '1763187908', '1763187908', '/product_info.php/info/p4012_Erde-Satellitenbild.html')

[XT SQL Error]