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', '4v3hgvn0i88laq9hld4juq7i63', '216.73.216.19', '1770332720', '1770332720', '/index.php/cat/c129_Sicherheitsaushaenge.html')

[XT SQL Error]