My b2evolution Version: 4.0.1

I am using the new Twitter plugin with OAuth. It kinda works, but not really: it posts to Twitter, but the $url$ field doesn't get translated well. It becomes a three-letter shortcut after the blog address, which, when clicked, takes you to an error page.

I've deleted the Twitter update, but it looked something like this:

Just posted 'blah blah blah' -- http://www.lalaurette.com.ar/blog/index.php/emporio/aEO

Invalid.