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', '8bb75584f95eb08dd5d0fd3e17edd3d1', '216.73.216.115', '1761627174', '1761627174', '/product_info.php/info/p3346_Australien-Reliefkarte.html')

[XT SQL Error]