1366 - Incorrect integer value: '' for column `shop_db3`.`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', '4a27fe77c5ba86142c59a437e5d70f1a', '3.145.178.157', '1713510664', '1713510664', '/product_info.php?info=p302_Frecher-Lauser.html&XTCsid=887fff7384999e8c958f14224ebe6b7c')

[XT SQL Error]