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', '307b33e07f66010da6ea21759e8439f8', '3.145.59.187', '1714136889', '1714136889', '/product_info.php/language/de/info/p2917_Kenia-Reliefkarte.html')

[XT SQL Error]