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', 'a2ab840e2dd553454397db1a52e93c08', '18.221.85.33', '1713524996', '1713524996', '/shop_content.php?coID=4&XTCsid=f716959fd807bba9b6e004501137d276')

[XT SQL Error]