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', '49ca45642b06f8e393c5d641781e3037', '18.119.107.96', '1714599037', '1714599037', '/index.php/language/de/cat/c35_Countries.html')

[XT SQL Error]