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', '52355b499f14438971a03fe6f3ff77a9', '3.145.60.166', '1713934311', '1713934311', '/product_info.php/language/de/info/p4004_Afrika-Reliefkarte.html')

[XT SQL Error]