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', '4caf8e41a64cc91a4f09c9831bd12211', '18.118.7.85', '1713305403', '1713305403', '/product_info.php/language/en/info/p3998_Afrika-Reliefkarte.html')

[XT SQL Error]