1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '935cee4628c6047b76dd2b71d6e5e0c9', '18.97.9.175', '1742282229', '1742282229', '/index.php?refID=1')

[XT SQL Error]