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', '1956287a65f869c3e6f4bb9ec05d8fd3', '44.212.39.149', '1711668996', '1711668996', '/product_info.php/language/de/refID/2/info/p4019_3D-Reliefkarten-Konfigurator.html')

[XT SQL Error]