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', '1ee26f1cf8f617dea09d6fc160a8e22a', '18.191.5.239', '1713499973', '1713499973', '/products_new.php?XTCsid=6f15378daa624dbfd839586482611826')

[XT SQL Error]