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', 'b9dcecf17d8fe68c28360fc080289631', '18.226.93.207', '1713934439', '1713934439', '/product_info.php/info/p2672_Island-Reliefkarte.html')

[XT SQL Error]