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', 'bce9db7acffba4e7bcee5c81c4468c37', '216.73.217.97', '1778487122', '1778487122', '/')

[XT SQL Error]