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', '6f284b75fbe97a10c5bc44ffe3a484a7', '216.73.216.121', '1751755321', '1751755321', '/product_info.php/info/p4000_Asien-Reliefkarte.html')

[XT SQL Error]