NullPointerException on play console

[rahul107]

java.lang.NullPointerException:
at com.twotoasters.jazzylistview.b.b (Unknown Source)
at com.twotoasters.jazzylistview.b.a (Unknown Source:65)
at com.twotoasters.jazzylistview.b.a (Unknown Source:37)
at com.twotoasters.jazzylistview.b.onScroll (Unknown Source)
at android.widget.AbsListView.invokeOnItemScrollListener (AbsListView.java:2168)
at android.widget.ListView.layoutChildren (ListView.java:2103)
at android.widget.AbsListView.onLayout (AbsListView.java:2952)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.LinearLayout.setChildFrame (LinearLayout.java:1791)
at android.widget.LinearLayout.layoutHorizontal (LinearLayout.java:1780)
at android.widget.LinearLayout.onLayout (LinearLayout.java:1546)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.support.v4.view.ViewPager.onLayout (Unknown Source:261)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.support.design.widget.f.b (Unknown Source:135)
at android.support.design.widget.m.a (Unknown Source)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.a (Unknown Source)
at android.support.design.widget.CoordinatorLayout.onLayout (Unknown Source:42)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.LinearLayout.setChildFrame (LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical (LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout (LinearLayout.java:1544)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.support.v4.widget.DrawerLayout.onLayout (Unknown Source:59)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.FrameLayout.layoutChildren (FrameLayout.java:323)
at android.widget.FrameLayout.onLayout (FrameLayout.java:261)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.LinearLayout.setChildFrame (LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical (LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout (LinearLayout.java:1544)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.FrameLayout.layoutChildren (FrameLayout.java:323)
at android.widget.FrameLayout.onLayout (FrameLayout.java:261)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.LinearLayout.setChildFrame (LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical (LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout (LinearLayout.java:1544)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.widget.FrameLayout.layoutChildren (FrameLayout.java:323)
at android.widget.FrameLayout.onLayout (FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout (DecorView.java:955)
at android.view.View.layout (View.java:20964)
at android.view.ViewGroup.layout (ViewGroup.java:6440)
at android.view.ViewRootImpl.performLayout (ViewRootImpl.java:3027)
at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2714)
at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1843)
at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:7978)
at android.view.Choreographer$CallbackRecord.run (Choreographer.java:911)
at android.view.Choreographer.doCallbacks (Choreographer.java:723)
at android.view.Choreographer.doFrame (Choreographer.java:658)
at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:897)
at android.os.Handler.handleCallback (Handler.java:790)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loop (Looper.java:164)
at android.app.ActivityThread.main (ActivityThread.java:7000)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:441)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1408)