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', 'e4f4b9808e50710b22e5fd368407f1b9', '3.145.175.243', '1713527142', '1713527142', '/shopping_cart.php?XTCsid=816effff2570c607585d0dd8551d2406')

[XT SQL Error]