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', '1847e76b81206d6e15528ba05b1e949f', '3.17.128.129', '1714123274', '1714123274', '/popup_content.php?coID=1&XTCsid=90527aa2d529d2491dd707c19574b114')

[XT SQL Error]