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', '7409e98f1b91c85f81402290b832e636', '18.221.222.47', '1714059680', '1714059680', '/shop_content.php?coID=1&XTCsid=816effff2570c607585d0dd8551d2406')

[XT SQL Error]