Facebook App Issue - Can not obtain Permissions , Keeps on refreshing

no one has a clue about this?

I found this Love Calculator app online , It is open source and free to use, I setted it up on my test server, I added all the app Id's and secrets and did all the setting but I am getting this permissions issue when I or Someone else try to use it , There are 3 Important files in this script,

Config.php (i setted it up , it has only 4 fields for the app id,secret,canvas url,app domain)
Index.php
Facebook.php (this is the sdk I figure)
Config.php is loaded in Index.php with the following code
Collapse | Copy Code
include_once ('lib/facebook.php'); // Facebook client library
include_once ('config.php'); // Config file

// Constants are located in config.php file
$facebook = new Facebook(
array(
'appId' => FACEBOOK_APP_ID,
'secret' => FACEBOOK_SECRET_KEY,
'cookie' => true,
'domain' => FACEBOOK_DOMAIN
)
);
Now , When I tried to figure out the problem , I found this code in index.php for obtaining permissions

Collapse | Copy Code
$session = $facebook->getSession();

if (!$session) {
$url = $facebook->getLoginUrl(array(
'canvas' => 1,
'fbconnect' => 0,
'scope' => 'publish_stream'
));
echo "<script type='text/javascript'>top.location.href = '$url';</script>";
} else {
try {
$uid = $facebook->getUser();
$me = $facebook->api('/me');
$updated = date("l, F j, Y", strtotime($me['updated_time']));
} catch (FacebookApiException $e) {
echo "<script type='text/javascript'>top.location.href = '$url';</script>";
exit;
}
}
The canvas app url is https://apps.facebook.com/fb-love-calculator-f The domain url is https://apps.mjobz.com/love/