Hello,
Greetings of the day!!
I have studied thoroughly your job description which was posted on Freelancer moments ago. After studying the details, I have definitely understood that you need to get Facebook issue fixed in the app. I have worked with various social apis like Facebook, Twitter, Instagram, Flickr, Tumblr.
I am very keen to discuss further. You can reach me at any time online.
Awaiting an affirmative response from your end .
Warm Regards,
Hardeep