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', '88974ed377e949f73a3690d293933b22', '52.14.85.76', '1714100913', '1714100913', '/account.php?XTCsid=2e913f95d614b725a3e8a823e845d351')

[XT SQL Error]