It's annoying... your own Joomla site don't let you log in in the backend, and you see the above error message... What's happened?
Humm, there are couple of things you can do. Contrary of the lots of "smart" blog entries on the subject out there...
It seems that module parameters haven't been configured properly. Please make sure that you are using a valid twitter username, and
that you have inserted the correct keys. Detailed instructions are written in the module settings page.