java.lang.NullPointerException

[cylonu87]

java.lang.RuntimeException
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:781)
at android.os.Handler.handleCallback(Handler.java:605)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4558)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.preference.PreferenceManager.getDefaultSharedPreferencesName(PreferenceManager.java:371)
at android.preference.PreferenceManager.getDefaultSharedPreferences(PreferenceManager.java:366)
at net.android.mangafoxreader.activity.MainActivity$d.refresh(MainActivity.java:1642)
at net.android.mangafoxreader.activity.MainActivity$1.onReceive(MainActivity.java:173)
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:772)
... 9 more