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', 'puq7e8p3ts9urhq3v41l20t107', '18.191.138.59', '1746972904', '1746972904', '/index.php/cat/c129_Sicherheitsaush--nge.html')

[XT SQL Error]