could not translate host name "gut.in.bpm" to address: Name or service not known



Traceback (most recent call last):
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 386, in <module>
    handle()
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 379, in handle
    return Attachment(mailing_list).render({"ident": parts[2]})
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 292, in render
    messageid = db.Message.select().where(db.Message.id == idents[0]).get().messageid
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 5911, in get
    return clone.execute(database)[0]
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1587, in inner
    return method(self, database, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1658, in execute
    return self._execute(database)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1809, in _execute
    cursor = database.execute(self)
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 451, in execute
    cursor = self.execute_sql(sql, params, commit=commit)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2660, in execute_sql
    self.commit()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2451, in __exit__
    reraise(new_type, new_type(*exc_args), traceback)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2651, in execute_sql
    cursor = self.cursor(commit)
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 438, in cursor
    self.connect()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2601, in connect
    self._initialize_connection(self._state.conn)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2451, in __exit__
    reraise(new_type, new_type(*exc_args), traceback)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2600, in connect
    self._state.set_connection(self._connect())
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 431, in _connect
    conn = super(PostgresqlExtDatabase, self)._connect()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 3227, in _connect
    conn = psycopg2.connect(database=self.database, **self.connect_params)
  File "/usr/lib/python2.7/dist-packages/psycopg2/__init__.py", line 130, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
OperationalError: could not translate host name "gut.in.bpm" to address: Name or service not known