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', 'c6bfe126a50f3cb0d44527269dd9169d', '18.223.134.29', '1714172592', '1714172592', '/product_info.php?info=p247_Nessun-Dorma.html&XTCsid=1ac6c2897c9e1517fbc2b6cff40eabd3')

[XT SQL Error]