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', 'e22235eadd6706840bcfdd86b9c5ab82', '216.73.216.78', '1794527254', '1794527254', '/')

[XT SQL Error]