Error Ice

Traceback (most recent call last):
  File "C:\Emulators_and_Ice\Ice\ice.py", line 41, in <module>
    main()
  File "C:\Emulators_and_Ice\Ice\ice.py", line 36, in main
    grid_manager.update_user_images(user_id,roms)
  File "C:\Emulators_and_Ice\Ice\ice\grid_image_manager.py", line 59, in update_user_images
    path = self.image_for_rom(rom)
  File "C:\Emulators_and_Ice\Ice\ice\grid_image_manager.py", line 43, in image_for_rom
    (path, error) = provider.image_for_rom(rom)
  File "C:\Emulators_and_Ice\Ice\ice\gridproviders\consolegrid_provider.py", line 62, in image_for_rom
    path = self.download_image(rom)
  File "C:\Emulators_and_Ice\Ice\ice\gridproviders\consolegrid_provider.py", line 54, in download_image
    image_url = self.find_url_for_rom(rom)
  File "C:\Emulators_and_Ice\Ice\ice\gridproviders\consolegrid_provider.py", line 47, in find_url_for_rom
    raise ConfigError("Grid Images", "Source", "The source of game images is unavailable.")
NameError: global name 'ConfigError' is not defined

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