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', '6597fd2ad4f8c08f37ec2f464b2d3a89', '3.149.27.202', '1713615823', '1713615823', '/product_info.php/info/p2907_Botswana-Reliefkarte.html')

[XT SQL Error]