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', '9m2ih4j5r0cldjkut968arnqu2', '3.231.3.140', '1711691487', '1711691487', '/login.php?XTCsid=9m2ih4j5r0cldjkut968arnqu2')

[XT SQL Error]