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', 'd7de7bcb325e7a3545a28fbc3b13a027', '18.118.140.108', '1713930394', '1713930394', '/product_info.php/language/de/info/p3449_Tschechische-Republik-Reliefkarte.html')

[XT SQL Error]