AttributeError no tile de Foto do dia

[hvelarde]

Ao tentar usar o tile de Foto do dia acontece o seguinte erro:

2018-09-03T15:48:08 ERROR Zope.SiteErrorLog 1536000488.430.382952427456 http://example.org/pagina-inicia
l/@@updatetilecontent
Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module collective.cover.browser.compose, line 64, in __call__
  Module collective.cover.browser.compose, line 53, in render
  Module brasil.gov.tiles.tiles.potd, line 67, in populate_with_object
AttributeError: data