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', '21c64c97a57a22a1cc243e0a1ec8bb81', '18.219.130.41', '1713466973', '1713466973', '/product_info.php/info/p3208_Ghana-Reliefkarte.html')

[XT SQL Error]