1366 - Incorrect integer value: '' for column `pella-ware`.`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', 'f7jkffnrsh0jhmpu1msja507p6', '3.145.206.169', '1713612893', '1713612893', '/login.php?XTCsid=f7jkffnrsh0jhmpu1msja507p6')

[XT SQL Error]