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', '9f81263949b845274db2ed35ab9d41f8', '35.170.81.62', '1711707042', '1711707042', '/product_info.php/info/p3005_Guinea-Bissau-Reliefkarte.html')

[XT SQL Error]