NSURLSession/NSURLCoection HTTP load failed (kCFStreamErrorDomainSSL, -9813) in youtube player

I'm using YouTube helper library to embed video in iOS app(https://github.com/youtube/youtube-ios-player-helper).I'm getting following message in console while ruing app and showing black color in youtube player view.Message is "NSURLSession/NSURLCoection HTTP load failed (kCFStreamErrorDomainSSL, -9813)".I have also enabled arbitary loads of transport security in info.plist file.Thanks in advance.