1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '65687163a217cc3811dfdd21da3383ff', '3.19.56.45', '1714066860', '1714066860', '/index.php/language/en/cat/c7_3D-Druck.html')

[XT SQL Error]