1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', '255206dfdd72d5af57930d818049a4e6', '18.118.166.98', '1713585504', '1713585504', '/index.php?cat=c106_.html')

[XT SQL Error]