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', 'lqed53o2s6n15uhiguluqgf3l4', '216.73.216.60', '1762474576', '1762474576', '/index.php/cat/c129_Sicherheitsaushaenge.html')

[XT SQL Error]