1366 - Incorrect integer value: '' for column `dogsdream`.`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', 'a36b739db92170a933053fad9bbf62ee', '3.22.68.71', '1747127292', '1747127292', '/shop/index.php')

[XT SQL Error]