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', '6708120605609c09df116df68fbb61b6', '18.119.125.135', '1714086393', '1714086393', '/shop_content.php?coID=1&XTCsid=a33edcfe7a4d0f8d478a4ad1978f2859')

[XT SQL Error]