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', 'd34dc8006158b7645e7a09ec6a8084b6', '216.73.216.145', '1760659176', '1760659176', '/index.php/language/en/cat/c40_Karten-Konfigurator.html')

[XT SQL Error]