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', '325e996f86a15c9b838f4f62f2b8ecbb', '18.191.234.191', '1713597907', '1713597907', '/product_info.php?info=p228_Auf-Wiedersehn.html&XTCsid=f14882bc03b87e844afdf80aaa54462a')

[XT SQL Error]