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', 'mbqvrep5m5fk7cjib86jk4fjs4', '216.73.216.63', '1773784899', '1773784899', '/index.php?XTCsid=d163dd0fc0b54bf3066f85422c77e00a&cat=c12_Music.html')

[XT SQL Error]