1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', '4c13ba98c4e3cbba29f10a3cfdaf4a35', '52.14.126.74', '1713524839', '1713524839', '/index.php?cat=c105_Carwraping-Folie--Klebefolie.html')

[XT SQL Error]