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', 'a8c2b04822464f816c8756e009a429d0', '3.134.81.206', '1714104675', '1714104675', '/product_info.php/language/de/refID/1/info/p439_Reliefkarten-Konfigurator.html')

[XT SQL Error]