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', '1237a150a43801992b9c6c60dd2d119b', '3.144.251.72', '1713431286', '1713431286', '/product_info.php/info/p2994_Daenemark-Reliefkarte.html')

[XT SQL Error]