1366 - Incorrect integer value: '' for column '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', '529e918b5504e2a6461fd63d1b714163', '3.145.111.183', '1713622464', '1713622464', '/product_info.php/info/p12_Sonnenblumenhonig.html')

[XT SQL Error]