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', '11f49827585da2a3ef1900589793cac0', '3.235.65.220', '1664482396', '1664482396', '/index.php?refID=1')

[XT SQL Error]