null pointer when request for gplus friends

java.lang.NullPointerException
at com.github.gorbin.asne.googleplus.GooglePlusSocialNetwork.getSocialPerson(GooglePlusSocialNetwork.java:341)
at com.github.gorbin.asne.googleplus.GooglePlusSocialNetwork.access$300(GooglePlusSocialNetwork.java:70)
at com.github.gorbin.asne.googleplus.GooglePlusSocialNetwork$5.onResult(GooglePlusSocialNetwork.java:482)
at com.github.gorbin.asne.googleplus.GooglePlusSocialNetwork$5.onResult(GooglePlusSocialNetwork.java:474)
at com.google.android.gms.common.api.BaseImplementation$CallbackHandler.deliverResultCallback(Unknown Source)
at com.google.android.gms.common.api.BaseImplementation$CallbackHandler.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5139)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
at dalvik.system.NativeStart.main(Native Method)