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', '42db218daf57aea16758542fefec31ad', '3.17.28.48', '1715127143', '1715127143', '/product_info.php/info/p3988_Asien-Reliefkarte.html')

[XT SQL Error]