Twitter OAuth Error 220 - php

Question

I have an application that Authenticates a user using OAuth and gets all of the permissions needed to post an update for a twitter user but when i try to actually do the post I get this response:
stdClass Object ( [errors] => Array ( [0] => stdClass Object ( [code] => 220 [message] => Your credentials do not allow access to this resource. ) ) )
here is my code for the authentication when they first link twitter:
// The TwitterOAuth instance
$twitteroauth = new TwitterOAuth(TWITTER_KEY, TWITTER_SECRET);
// Requesting authentication tokens, the parameter is the URL we will be redirected to
$request_token = $twitteroauth->getRequestToken(TWITTER_CALLBACK_URL);
// Saving them into the session
$_SESSION['twitter_oauth_token'] = $request_token['oauth_token'];
$_SESSION['twitter_oauth_token_secret'] = $request_token['oauth_token_secret'];
// If everything goes well..
if($twitteroauth->http_code==200){
// Let's generate the URL and redirect
$url = $twitteroauth->getAuthorizeURL($request_token['oauth_token']);
header('Location: '. $url);
} else {
// Remember to adds script for error handling and reporting but for now kill the script
die('Something wrong happened.');
}
And here is what happend when they get to the callback:
if(!empty($_GET['oauth_verifier']) && !empty($_SESSION['twitter_oauth_token']) && !empty($_SESSION['twitter_oauth_token_secret'])){
// TwitterOAuth instance, with two new parameters we got in twitter_login.php
$twitteroauth = new TwitterOAuth(TWITTER_KEY, TWITTER_SECRET, $_SESSION['twitter_oauth_token'], $_SESSION['twitter_oauth_token_secret']);
// Let's request the access token
$access_token = $twitteroauth->getAccessToken($_GET['oauth_verifier']);
// Save it in a session var
$_SESSION['access_token'] = $access_token;
// Let's get the user's info
$user_info = $twitteroauth->get('account/verify_credentials');
if(isset($user_info->error)){
// Something's wrong, go back to square 1
header('Location: networks.php?connect=2');
} else {
// Let's find the user by its ID
$query = mysql_query("SELECT * FROM connected_accounts WHERE oauth_provider = 'twitter' AND oauth_uid = ". $user_info->id);
$result = mysql_fetch_array($query);
// If not, let's add it to the database
if(empty($result)){
$query = mysql_query("INSERT INTO connected_accounts (user_id, account_id, oauth_provider, acct_usr_id, oauth_uid, username, token, secret) VALUES ('".${'User'}['id']."', '2', 'twitter', ".$user_info->id.", ".$user_info->id.", '".$user_info->screen_name."', '".$access_token['oauth_token']."', '".$access_token['oauth_token_secret']."')");
$query = mysql_query("SELECT * FROM connected_accounts WHERE id = " . mysql_insert_id());
$result = mysql_fetch_array($query);
} else {
// Update the tokens
$query = mysql_query("UPDATE connected_accounts SET token = '".$access_token['oauth_token']."', secret = '".$access_token['oauth_token_secret']."' WHERE oauth_provider = 'twitter' AND oauth_uid = ".$user_info->id);
}
$_SESSION['id'] = $result['id'];
$_SESSION['username'] = $result['username'];
$_SESSION['oauth_uid'] = $result['oauth_uid'];
$_SESSION['oauth_provider'] = $result['oauth_provider'];
$_SESSION['oauth_token'] = $result['token'];
$_SESSION['oauth_secret'] = $result['secret'];
header('Location: manage_accounts.php');
}
} else {
// Something's missing, go back to square 1
header('Location: networks.php?connect=2');
}
// Get our permenant token
$response = $twitter_client->getAccessToken($_GET['oauth_verifier']);
// If we did not receive a permenant token, notify the user
if (!$response['oauth_token']) {
$message = '<center><div class="error">An error occurred while linking your Twitter account. Please try again later.</div></center>';
// Otherwise
} else {
// Update our info
mysql_query('UPDATE `connected_accounts` SET `token` = "'.$response['oauth_token'].'", `acct_usr_id` = "'.$response['user_id'].'", `secret` = "'.$response['oauth_token_secret'].'" WHERE `account_id` = 2 AND `user_id` = '.${'User'}['id']) or die(mysql_error());
// Send the user to the post page
header('Location: manage_accounts.php'); exit;
}
I am using the Library from https://github.com/abraham/twitteroauth
Everything used to work just fine but now it isn't working.
It seems that it has something to do with application only authentication but I am using OAuth which is supposed to allow posting to statuses/update