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', '460f71d3e18a322bb97075307f21a21b', '3.15.5.183', '1714078251', '1714078251', '/shop_content.php?coID=1&XTCsid=3a57a77cceb215ec6cb91829f992c301')

[XT SQL Error]