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', '4a604313f4116604d17c82b5356d04c1', '3.14.6.194', '1713867807', '1713867807', '/password_double_opt.php?XTCsid=887fff7384999e8c958f14224ebe6b7c')

[XT SQL Error]