Ошибка поулчения access token

Добрый день! Получаю ошибку при получении access token из refresh token:

{

 "error": "invalid_grant",

 "error_description": "Bad Request",

 "error_uri": ""

}

Код ошибки - 400 

Отправляю запрос: 

https://www.googleapis.com/oauth2/v3/token&grant_type=refresh_token&client_id=ххххххххх&client_secret=хххххххххх&refresh_token=ххххххххххххххх

Раньше работало все замечательно, пару недель назад перестало.

Причет ошибка только на тестовом аккаунте.

На рабочым аккаунте все работает.

Подскажите в чем может быть причина ошибки?

Может refresh_token устарел? 

Может нужно перегенерировать refresh_token?

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