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', '29d1a562d5c6004cfcd8ec2475a3e263', '3.133.147.87', '1713247702', '1713247702', '/advanced_search.php?XTCsid=a30b88a4b439ebf54b931b21d14e2df9')

[XT SQL Error]