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', '31f0a347522ca4a8387e92cfeea8239e', '3.14.142.115', '1714118285', '1714118285', '/product_info.php/language/de/info/p3072_Faroe-Is--3-Relief-Map.html')

[XT SQL Error]