1366 - Incorrect integer value: '' for column `ngtkeZ_web1104_2`.`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', '2dp8frj9l4ejiaaekursv0gkn6', '3.85.211.2', '1711654139', '1711654139', '/checkout_shipping.php')

[XT SQL Error]