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', '9c949c61691a54aa3b82dc64c55515fe', '3.17.186.218', '1714123883', '1714123883', '/index.php/language/de/cat/c35_Countries.html/page/6')

[XT SQL Error]