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', 'fffeb6f3eceb5def054b9c2787f189d5', '34.231.247.88', '1653610860', '1653610860', '/index.php/language/de')

[XT SQL Error]