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', '1539e77d0a1b9cb47625eede7f55d3e7', '3.135.195.249', '1713299668', '1713299668', '/account.php?XTCsid=ae958f15bfdd7f280c3365e7be4f705d')

[XT SQL Error]