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', '9739e13b16292852caa0395e0a511cef', '107.21.176.63', '1711660857', '1711660857', '/shop_content.php?coID=4&XTCsid=0d9ee48a6a0ef54d70661006a72a5ec7')

[XT SQL Error]