1366 - Incorrect integer value: '' for column `hbl_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', 'qhd1r01l6j2iggh8tde5qqe3j5', '18.119.13.56', '1746782980', '1746782980', '/product_info.php?info=p121_804589-Maiskolbenentkoerner.html')

[XT SQL Error]