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', '7a068e301b3b097e1214435489e21674', '18.97.9.169', '1733423515', '1733423515', '/')

[XT SQL Error]