1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', '211caa655177e1505ffe411b887c99a7', '44.204.34.64', '1711634261', '1711634261', '/product_info.php?info=p322_.html')

[XT SQL Error]