1366 - Incorrect integer value: '' for column `shop_db3`.`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', '5d19795cfbd6865bf094f7e92af5af0f', '3.136.97.64', '1713457384', '1713457384', '/product_info.php?info=p53_Fruehling-an-der-Donau--Walzer-.html&XTCsid=5e10770c3e5d1353aa8ec3f7bd33fee6')

[XT SQL Error]