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', '3373ba9d5ae91dbbff1d723560bb84ec', '3.133.131.168', '1713503791', '1713503791', '/product_info.php/language/de/info/p2600_Groenland-Reliefkarte.html')

[XT SQL Error]