1054 - Unknown column 'http_referer' in 'field list'

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url, http_referer) values ('', 'Guest', '9fdbef7a144b1ed3550d853d1311c7a2', '54.167.18.170', '1542723937', '1542723937', '/shop_content.php?coID=9', '')

[XT SQL Error]