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', '972cab6d68a9dde09053d534e4185879', '18.118.126.241', '1714121043', '1714121043', '/product_info.php/info/p2920_Island-Reliefkarte.html')

[XT SQL Error]