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', 'b6c7085115e55f6c63ba663abedfe9c5', '3.17.154.171', '1713902178', '1713902178', '/advanced_search.php?XTCsid=7449276e387898a36bd6271988bac6c7')

[XT SQL Error]