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', 'uv6e0916bkgis6r1chdl38ucs2', '54.198.154.234', '1711696598', '1711696598', '/login.php?XTCsid=uv6e0916bkgis6r1chdl38ucs2')

[XT SQL Error]