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', '84mfeqaf2ejnv9befi7q7gk5d4', '216.73.216.59', '1789243206', '1789243206', '/index.php')

[XT SQL Error]