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', 'eb1bffda1cdf3204ffa1b5fd566c1cda', '216.73.216.44', '1768884568', '1768884568', '/product_info.php/info/p1571_Deutschland-Satellitenbild.html')

[XT SQL Error]