title: could not connect to server: Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432?
body: <p>it's my first project to publish with django
  i try to publish my first project on python anywhere but it still not working and this is my error :
  could not connect to server: Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432?</p>
  
  <pre><code>DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.postgresql_psycopg2',
          'NAME': 'arena',
          'USER': 'arenadbuser',
          'PASSWORD': ,
          'HOST': 'localhost',
          'PORT': '',
      }
  }
  </code></pre>