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', '5c9cefcbd441da17ce312ea3a76a2b74', '216.73.216.3', '1766460503', '1766460503', '/product_info.php/info/p1540_Frankreich-Satellitenbild.html')

[XT SQL Error]