Twitter app problem!! Help ?

[Memmmm]

On my twitter app for my iPhone 4 when I go to my timeline it says protected tweets so I cant look at anything. Then, when I go to look at my mentions it says unauthorized. I cant tweet but i can look at my profile. I deleted the app and redownloaded it but it still says the same thing. How can I fix this?

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How to access mobile.twitter.com on your smartphone

Mobile Web works on any mobile device equipped with a web browser. Just go to mobile.twitter.com to connect to a Twitter interface made just for your mobile device.

Note: mobile.twitter.com looks different on smartphones and on feature phones. This article details the experience of mobile.twitter.com on either type of device. Please see the table of contents for more information.

Tutorial
Basics: Homepage, Timeline, Mentions, Favorites, Retweets and More

•To tweet, tap on the compose Tweet icon (looks like a feather quill) on the top right of the scree. This will bring up the Tweet composer (pictured below).

•At the top of your homepage, you will see icons for Home, @Connect, #Discover and Me.
•Home is where you see Tweets from the accounts you follow and can navigate back to your Home Timeline.

•@Connect is where you can find your public @mentions and Tweet Interactions

•#Discover is where you can see the latest Top Stories and Trends worldwide.

•Me is where you can view your Profile, access your Direct Messages, Lists, Favorites, and more!