This addon is excluded
This addons is excluded from the Isengard repositories as it depends on script.module.simpleplugin 0.2.5 which is not available or has been excluded.About SuperRepo and Greek Voice
SuperRepo does not maintain Greek Voice. We only provide an automated index for Kodi users to have easy access to Greek Voice and other addons for Kodi. We are not affiliated with the developers (Twilight0) and do not provide help for this particular addon.