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', 'adfjk6gcl3unf367uh2pjp2ft7', '3.129.70.157', '1714128930', '1714128930', '/login.php?XTCsid=adfjk6gcl3unf367uh2pjp2ft7')

[XT SQL Error]