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', '83bd3d1f0fc0e4626bbc273e46b8d2d5', '216.73.216.205', '1792654489', '1792654489', '/')

[XT SQL Error]