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', '32eb66987ba5888c63c8c4cc318f0bbd', '3.133.109.211', '1713448953', '1713448953', '/checkout_shipping.php?XTCsid=7449276e387898a36bd6271988bac6c7')

[XT SQL Error]