1366 - Incorrect integer value: '' for column `db162720`.`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', '2tmj9v31pt0fcmdjf88dvmvhc6', '3.142.250.114', '1714031164', '1714031164', '/product_info.php/info/p209_.html')

[XT SQL Error]