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', '2b32ea34346b0acc0decb1bdb48d3e4e', '3.135.185.194', '1713501311', '1713501311', '/product_info.php?info=p312_Selbstklebende-Folie--5-7-Jahre-Carwraping-Rapid-Air.html')

[XT SQL Error]