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', 'bd835d22c8e69748f4cf6445fa504c9f', '3.138.105.124', '1714117668', '1714117668', '/product_info.php?language=en&info=p247_Nessun-Dorma.html&XTCsid=638bbe3e68bb73ad3db5aa2ad24a3591')

[XT SQL Error]