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', '6f47bb617bd9fcccc0119e9069a2fb24', '18.221.129.19', '1713583994', '1713583994', '/login.php?language=en')

[XT SQL Error]