SQL Prepare Error

Error Number: 42S22

Unknown column 'n.position' in 'SELECT'

SELECT n.id, n.namevi, n.date_created, thoigiandoc, n.descvi, n.view, n.slugvi, n.photo, n.status, n.type, n.id_author, n.position, m.id as author_id, m.fullname as author_name, m.bio as author_bio, m.username as author_username from table_news n left join table_member m on n.id_author = m.id where (type='cau-chuyen-kinh-doanh' or type='suc-khoe' or type='nhip-song-24h' or type='thi-truong-tieu-dung' or type='thuong-hieu' or type='social-icon' or type='special' or type='the-thao' or type='kinh-te-tai-chinh') and find_in_set('hienthi',n.status) and find_in_set('cauchuyenkinhdoanh',n.status) order by n.date_created desc