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', 'd7d7ef659815a9675ad4e259d6a07d9d', '3.22.181.209', '1713515168', '1713515168', '/product_info.php?language=en&info=p246_Dream-Melody.html&XTCsid=42f56783889520011baaa0c109b43aca')

[XT SQL Error]