MySQL error in file: /engine/modules/topnews.php at line 33

Error Number: 1054

The Error returned was:
Unknown column 'flag' in 'field list'

SQL query:

SELECT id, date, short_story, xfields, title, category, alt_name, flag FROM dle_post WHERE approve=1 AND date >= '2017-06-28 18:33:50' - INTERVAL 1 MONTH AND date < '2017-06-28 18:33:50' ORDER BY rating DESC, comm_num DESC, news_read DESC, date DESC LIMIT 0,10