1.On your iPhone, go to Settings —> Scroll down to Twitter
2.Check that your twitter ID and password is already listed there.
3.If it is, delete the account once and add it again.
4.Also, you need to allow nana to use your twitter account. Scroll down on the same screen, and make sure it’s turned on for nana.
5.Start the “Twitter” App, or open Twitter on your browser, and try logout, then login.
If it still doesn’t work after following these steps, try logout —> log in on nana too.
Make sure that you are logged in to the correct Twitter account on the app integration page, and are allowing nana to use your Twitter account.