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', '0686f127dfda2ae98cc27bf01c832c0f', '35.175.107.142', '1701398520', '1701398520', '/index.php?refID=1')

[XT SQL Error]