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', 'b285e9bd777a5de6085126e2bfca75d8', '216.73.216.78', '1794487549', '1794487549', '/')

[XT SQL Error]