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', '541784a1993b3ed29c19dde26832c6d0', '18.221.165.246', '1713909516', '1713909516', '/create_account.php?language=en')

[XT SQL Error]