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', '9gagbjplrrp07upf8kjb9m76m1', '3.14.144.240', '1746949684', '1746949684', '/product_info.php/info/p6327_KNS-Symbolschild--Richtungspfeil.html')

[XT SQL Error]