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', 'ac90ef86152f2eaa371526220f0d0d05', '3.17.150.89', '1714191682', '1714191682', '/product_info.php/info/p2967_Bulgarien-Reliefkarte.html')

[XT SQL Error]