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', '902414e5fd9e7c9a28c2f7109153ce84', '18.216.94.152', '1714137656', '1714137656', '/password_double_opt.php?XTCsid=fbf10991e93a5b1cee6d3cdc21485899')

[XT SQL Error]