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', 'eec178f21a4e06ba3f75a6c4d0b5c1fe', '18.97.14.82', '1762578751', '1762578751', '/')

[XT SQL Error]