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', '4f03bb944a3363c8bef5d8922715083f', '3.138.101.95', '1713526486', '1713526486', '/product_info.php/language/de/info/p2641_Aethiopien-Reliefkarte.html')

[XT SQL Error]