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', 'ca5d2b2dc1c1b1fb0561f4333630b217', '3.143.244.83', '1713525241', '1713525241', '/product_info.php/info/p3999_Europa-Reliefkarte.html')

[XT SQL Error]