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', 'e3bc13b50e218f7455f08da54717cd8b', '3.144.251.72', '1714090683', '1714090683', '/index.php/language/de/cat/c30_Countries.html/page/2')

[XT SQL Error]