elisa.plugins.database.dbus_service.PictureNotFoundError when watching pictures

I got this error when watching pictures using the deviantART plugin

Unhandled error in Deferred:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 312, in _startRunCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 328, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 289, in _continue
    self.unpause()
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 285, in unpause
    self._runCallbacks()
--- <exception caught here> ---
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 328, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "/usr/lib/python2.5/site-packages/elisa/plugins/database/dbus_service.py", line 110, in build_last_picture_played_tuple
    raise PictureNotFoundError()
elisa.plugins.database.dbus_service.PictureNotFoundError: