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', 'ab036ecda3632bbf7428a44214a5db6d', '3.144.172.115', '1714183551', '1714183551', '/index.php/language/de/cat/c35_Countries.html/page/4')

[XT SQL Error]