error in heroku.

gistfile1.txt

2016-07-14T13:13:11.659258+00:00 app[web.1]:                WHERE a.attrelid = '"articles"'::regclass
2016-07-14T13:13:11.653390+00:00 app[web.1]: Processing by ArticlesController#new as */*
2016-07-14T13:13:11.659258+00:00 app[web.1]:                WHERE a.attrelid = '"articles"'::regclass
2016-07-14T13:13:11.659249+00:00 app[web.1]: ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR:  relation "articles" does not exist
2016-07-14T13:13:11.659259+00:00 app[web.1]:                ORDER BY a.attnum
2016-07-14T13:13:11.659261+00:00 app[web.1]: 
2016-07-14T13:13:11.659262+00:00 app[web.1]: 
2016-07-14T13:13:11.659254+00:00 app[web.1]: :               SELECT a.attname, format_type(a.atttypid, a.atttypmod),
2016-07-14T13:13:11.653390+00:00 app[web.1]: Processing by ArticlesController#new as */*
2016-07-14T13:13:11.659258+00:00 app[web.1]:                WHERE a.attrelid = '"articles"'::regclass
2016-07-14T13:13:11.659250+00:00 app[web.1]: LINE 5:                WHERE a.attrelid = '"articles"'::regclass
2016-07-14T13:13:11.659249+00:00 app[web.1]: ActiveRecord::StatementInvalid (PG::UndefinedTable: ERROR:  relation "articles" does not exist
2016-07-14T13:13:11.659259+00:00 app[web.1]:                ORDER BY a.attnum
2016-07-14T13:13:11.659260+00:00 app[web.1]:   app/controllers/articles_controller.rb:9:in `new'
2016-07-14T13:13:11.659261+00:00 app[web.1]: 
2016-07-14T13:13:11.659262+00:00 app[web.1]: 
2016-07-14T13:13:11.658788+00:00 heroku[router]: at=info method=GET path="/articles/new" host=aag-one.herokuapp.com request_id=1d065854-0bc8-471f-bbf4-159bdfc229bb fwd="104.196.6.118" dyno=web.1 connect=0ms service=24ms status=500 bytes=1754

log-heroku.text

2016-07-14T13:13:11.659258+00:00 app[web.1]:                WHERE a.attrelid = '"articles"'::regclass
2016-07-14T13:13:11.653390+00:00 app[web.1]: Processing by ArticlesController#new as */*

Solution

log into heroku through terminal and run
heroku run rake db:migrate
and than commit with heroku master git push heroku master