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', 'a378de59e5fa8d9b93579db657def897', '44.200.101.84', '1695704884', '1695704884', '/index.php?refID=1')

[XT SQL Error]