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', 'b8494b46602fd328a4fa797bb61df1bd', '3.140.185.123', '1714021396', '1714021396', '/advanced_search.php?XTCsid=556213bd995aa263df7318e539f41bde')

[XT SQL Error]