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', '5755eadc3ce16c3b408a00ae8d3880e4', '3.81.30.41', '1711666313', '1711666313', '/product_info.php/language/de/info/p3384_Turkmenistan-Reliefkarte.html')

[XT SQL Error]