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', '1471b396eda9870d9eb04c18f10ea975', '18.223.172.252', '1713962925', '1713962925', '/product_info.php/info/p3133_Italien-Reliefkarte.html')

[XT SQL Error]