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', '22e426dec1e0a83a9a14deaabac90b4b', '44.200.169.3', '1670392955', '1670392955', '/index.php?refID=1')

[XT SQL Error]