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', '3b056bbecf43e8a2e2b2a19ea45f476e', '3.138.141.202', '1713970105', '1713970105', '/product_info.php/language/de/info/p2990_Belgien-Reliefkarte.html')

[XT SQL Error]