1366 - Incorrect integer value: '' for column `abtecsho_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', '3edp9pbm1sp4jtodj5b9u5i372', '18.218.24.244', '1746961923', '1746961923', '/product_info.php/info/p6053_-Jockel-W-9-H-System--9-l--Wasserl--scher.html')

[XT SQL Error]