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', '44361b521a116c4d9e507030c28c87c6', '3.140.242.165', '1713911218', '1713911218', '/shop_content.php?coID=1&XTCsid=ed890d870a93292a1cc254113c4cf12e')

[XT SQL Error]