Getting 401 Unauthorised ClientProtocolException while sending tweets

[Richa10S]

Till now my applications use to work fine while sending tweets.
From last one week while trying to share a tweet if user is not logged in, the application is correctly redirected to Twitter Login Page from where i can enter credentials and authorization process is done.

After login process is successful, while trying to send tweets i get following error:
ClientProtocolException.
Error Code: 401
Error Message: Unauthorized

Can anyone please guide me here?

[kunchapuarjun]

am having problum in singing my twitter account through my phone while all social websites including f.b too running successfully. But my Twitter account is not accessing since two days. please look about it.