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', '76a4ffb7b0e26eff33a1bdf1bdde79dd', '18.117.188.64', '1713583473', '1713583473', '/index.php/cat/c7_3D-Druck.html')

[XT SQL Error]