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', '1ed9298601b11c33746c6fa58d2a2504', '18.216.233.58', '1713537775', '1713537775', '/product_info.php?info=p249_German-Folk-Medley.html&XTCsid=18ef4d570fc05d4799b5475265fad7ac')

[XT SQL Error]