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', '7cd62af8615a5911cba39988bc66c56e', '18.188.175.182', '1714091130', '1714091130', '/index.php?cat=c86_Digitaldruck-auf-Klebefolie.html')

[XT SQL Error]