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', 'b30bb9a9abdaad79524f87ffd4e77389', '216.73.216.53', '1752093361', '1752093361', '/product_info.php/info/p1798_Cape-Verde-8-Satellitenbild.html')

[XT SQL Error]