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', '0255cce04a7e845e0cc3780552c6caeb', '18.191.254.0', '1713281221', '1713281221', '/product_info.php?info=p249_German-Folk-Medley.html&XTCsid=34eb3af5dd83507b4e3d18340087e638')

[XT SQL Error]