TalkBack: System language is different from TTS language
Make sure that you select the same language under the following options:


 1. Settings ->  Accessibility -> Text-to-speech output -> ***** Text-to-speech, 
    settings button behind it -> Language -> English(United States)

 2. Language and Input -> Language -> English(United States)



You may select any Language, but choose the same language in both of these cases.