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', '4b8c8cbb1292979818333efb1755a492', '3.140.188.16', '1713590988', '1713590988', '/shop_content.php?coID=8&XTCsid=556213bd995aa263df7318e539f41bde')

[XT SQL Error]