Debug SocialLogin extension for MediaWiki 1.21.2

I need to have Facebook, Google Plus, and Twitter login for my website which runs MediaWiki 1.21.2. I found that the SocialLogin extension (([login to view URL]:SocialLogin) can do the job. But the extension currently cannot work for MediaWiki 1.21.2. So I need someone to do the debug work to figure out the problems, and make it work for Facebook, Google Plus, and Twitter login. If you are familiar with MediaWiki and extension developments, it should be an easy job for you. If you are not, please do not bid.