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', '8ab15954ba32b1826e680e6315941560', '216.73.216.109', '1765665410', '1765665410', '/product_info.php/language/de/info/p3100_Australien-Reliefkarte.html')

[XT SQL Error]