Random crash

[babulpatel1309]

OS version : Marshmallow

Fatal Exception: java.lang.RuntimeException: Failure delivering result ResultInfo{who=@android:requestPermissions:android:fragment:1, request=1999, result=-1, data=Intent { act=android.content.pm.action.REQUEST_PERMISSIONS (has extras) }} to activity {com.Invoice.maker/com.invoiceapp.Main.SplashActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'void com.kishan.askpermission.PermissionCallback.onPermissionsGranted(int)' on a null object reference at android.app.ActivityThread.deliverResults(ActivityThread.java:3699) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.access$1400(ActivityThread.java:150) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:171) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by java.lang.NullPointerException: Attempt to invoke interface method 'void com.kishan.askpermission.PermissionCallback.onPermissionsGranted(int)' on a null object reference at com.kishan.askpermission.AskPermissionImp.onRequestPermissionsResult(AskPermissionImp.java:82) at com.kishan.askpermission.ShadowFragment.onRequestPermissionsResult(ShadowFragment.java:59) at android.app.Activity.dispatchRequestPermissionsResultToFragment(Activity.java:6626) at android.app.Activity.dispatchActivityResult(Activity.java:6498) at android.app.ActivityThread.deliverResults(ActivityThread.java:3695) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.access$1400(ActivityThread.java:150) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:171) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)