1366 - Incorrect integer value: '' for column `hbl_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', 'gmgtaoni970vjs8247ej4l0g65', '3.15.147.225', '1746964550', '1746964550', '/product_info.php?info=p617_806392-Dibbelmaschine--Handsaemaschine.html')

[XT SQL Error]