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', '209803a7802a0c8003bc66905f3fc5f8', '18.219.95.244', '1714121745', '1714121745', '/index.php/language/en/refID/1/cat/c44_3D-Karten.html')

[XT SQL Error]