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', '5d297e68639c1a78444a195791b2b998', '3.235.65.220', '1664487946', '1664487946', '/index.php/cat/c38_Karten-Konfigurator.html')

[XT SQL Error]