Twitter 500 error

Is there an information in the 500 error? If it's an Apache 500 error, that may not be helpful. If it's a 500 error from Joomla (usually in red letters), that should have some details as to why the authentication isn't working.

If there's any details you can provide on what you are attempting to do and what you've tried, that will help narrow things down a bit. If not, let us know the URL we can test with and we'll see if there's anything obvious we can tell is wrong.

Thanks,
Alex