Permissions error when posting to a group I administer - facebook

Question

My app is able to post to several pages successfully, but when I try to post to a group:
$page_id = MY_GROUP_ID;
$page_access_token = "";
$result = $fb->api("/me/accounts");
$page_access_token = "";
// loop trough all your pages and find the right one
if( !empty($result['data']) )
{
foreach($result["data"] as $page)
{
if($page["id"] == $page_id)
{
$page_access_token = $page["access_token"];
break;
}
}
} else {
echo "AN ERROR OCCURED: could not get the access_token. Please verify the page ID ".$page_id." exists.";
}
// set the facebook active facebook access token as the one we just fetch
$fb->setAccessToken($page_access_token);
// Now try to post on page's wall
try{
$message = array(
'message' => "Test message",
'description' => "Test Description",
'link' => "http://example.org"
);
$result = $fb->api('/'.$page_id.'/feed','POST',$message);
if($result){
echo 'Successfully posted to Facebook Wall...';
}
}catch(FacebookApiException $e){
echo $e->getMessage();
}
}else{
$fbloginurl = $fb->getLoginUrl(array('redirect-uri'=>$returnurl, 'scope'=>$permissions));
echo 'Login with Facebook';
}
I get
(#200) Permissions error
If I go here: https://www.facebook.com/settings?tab=applications, I can see my app and permissions it has. I do not see anything in the list pertaining to groups.
I've logged out and was prompted to log in with the script (above), but am not being prompted to edit/add app permissions. I cannot find any app related settings under Group Settings for the group I have.
I remember seeing the app permissions page a year ago when I first made the app, but short of deleting the current and recreating, is there a way to simply edit existing permissions to add my group to the app? I am not seeing any group permissions when I click on the app under the app settings page (right above).