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', '03750724f758dc495b54a0e7b1f6d669', '3.133.131.168', '1713857584', '1713857584', '/index.php/language/de/cat/c44_3D-Karten.html')

[XT SQL Error]