IndexError: No item with that key - language interface

[harlequin]

IndexError: No item with that key
if self.providerID != 'newzbin' and not show_name_helpers.filterBadReleases(curResult["name"], curResult["lang"]):
File "D:\workspace\sickbeard\sickbeard\tvcache.py", line 348, in findNeededEpisodes
return self.cache.findNeededEpisodes()
File "D:\workspace\sickbeard\sickbeard\providers\generic.py", line 180, in searchRSS
curFoundResults = curProvider.searchRSS()
File "D:\workspace\sickbeard\sickbeard\search.py", line 155, in searchForNeededEpisodes