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', 'c9c3394f18e7626577f54a68c59ec589', '3.21.248.47', '1714123022', '1714123022', '/index.php/language/en/cat/c30_Laender.html/page/3')

[XT SQL Error]