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', 'b19fcdc92795adcf494df00fb52649dd', '3.238.174.191', '1713135877', '1713135877', '/index.php?refID=1')

[XT SQL Error]