Rss to twitt

I dont know why but seem only got this problem when i run rss to twitter

Problem with the url shortening service. Check back later. Error: Could not verify twitter username/password

I checked my user/pass, it's all correct!

Some times twitter is giving this error when you try to verify your account too many times. Try this again after a few hours and if the problem persists you have something wrong with the login criteria you gave to the script.

this is a little slow with the exchange of data