ckan error

File '/usr/lib/ckan/default/src/ckanext-ckanpackager/ckanext/ckanpackager/controllers/packager.py', line 81 in package_resource
  model.Session.commit()
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/scoping.py', line 149 in do
  return getattr(self.registry(), name)(*args, **kwargs)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 768 in commit
  self.transaction.commit()
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 370 in commit
  self._prepare_impl()
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 339 in _prepare_impl
  self.session.dispatch.before_commit(self.session)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/event/attr.py', line 257 in __call__
  fn(*args, **kw)
File '/usr/lib/ckan/default/src/ckan/ckan/model/meta.py', line 73 in before_commit
  session.flush()
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 1907 in flush
  self._flush(objects)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 2025 in _flush
  transaction.rollback(_capture_exception=True)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py', line 57 in __exit__
  compat.reraise(exc_type, exc_value, exc_tb)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py', line 1989 in _flush
  flush_context.execute()
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py', line 371 in execute
  rec.execute(self)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py', line 524 in execute
  uow
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py', line 64 in save_obj
  mapper, table, insert)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py', line 600 in _emit_insert_statements
  execute(statement, params)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py', line 727 in execute
  return meth(self, multiparams, params)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/sql/elements.py', line 322 in _execute_on_connection
  return connection._execute_clauseelement(self, multiparams, params)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py', line 824 in _execute_clauseelement
  compiled_sql, distilled_params
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py', line 954 in _execute_context
  context)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py', line 1116 in _handle_dbapi_exception
  exc_info
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/util/compat.py', line 189 in raise_from_cause
  reraise(type(exception), exception, tb=exc_tb)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py', line 947 in _execute_context
  context)
File '/usr/lib/ckan/default/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py', line 435 in do_execute
  cursor.execute(statement, parameters)
ProgrammingError: (ProgrammingError) relation "ckanpackager_stats" does not exist
LINE 1: INSERT INTO ckanpackager_stats (inserted_on, count, resource...
                    ^
 'INSERT INTO ckanpackager_stats (inserted_on, count, resource_id) VALUES (now(), %(count)s, %(resource_id)s) RETURNING ckanpackager_stats.id' {'count': 0, 'resource_id': u'b433dbe2-bfa0-4d6b-8570-8979f3a9c242'}