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', 'flk45c0f8nbh3eamsoe3tl3kk4', '18.226.82.161', '1747139565', '1747139565', '/product_info.php?info=p645_800017-Deckel-fuer-Futterdaempfer-63-L.html')

[XT SQL Error]