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', '03f1e37e0021079bdcd054513f5ea240', '216.73.216.155', '1751313044', '1751313044', '/index.php/language/de')

[XT SQL Error]