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', '3df4d62bb595eb8280f37d03f40f1666', '3.146.105.194', '1713953691', '1713953691', '/advanced_search.php?XTCsid=752467afa49d1c2decc281986e95df51')

[XT SQL Error]