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', '36cf2a30302c6a18cc15e06435808d0b', '3.239.96.229', '1711702048', '1711702048', '/index.php/language/de/refID/1/cat/c44_3D-Karten.html')

[XT SQL Error]