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', '1023fb08b34c500b731756cd88c45c1f', '13.58.82.79', '1713872106', '1713872106', '/product_info.php?language=de&info=p246_Dream-Melody.html&XTCsid=0b5950426fd4d33665c5302b513a92c8')

[XT SQL Error]