Getting Null pointer exception while running in Android 9 update

[sunit09]

The loader was running smoothly, unless I update the device with Android Pie update.
Attaching log response for your reference.

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.PointF com.tuyenmonkey.mkloader.model.Line.getPoint1()' on a null object reference
at com.tuyenmonkey.mkloader.type.Pulse.draw(Pulse.java:67)
at com.tuyenmonkey.mkloader.MKLoader.onDraw(MKLoader.java:61)
at android.view.View.draw(View.java:20211)
at android.view.View.updateDisplayListIfDirty(View.java:19086)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4136)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.draw(View.java:20214)
at android.support.v4.view.ViewPager.draw(ViewPager.java:2420)
at android.view.View.updateDisplayListIfDirty(View.java:19086)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.support.design.widget.CoordinatorLayout.drawChild(CoordinatorLayout.java:1254)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.draw(View.java:20214)
at android.view.View.updateDisplayListIfDirty(View.java:19086)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.updateDisplayListIfDirty(View.java:19077)
at android.view.View.draw(View.java:19939)
at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
at android.view.View.draw(View.java:20214)
at com.android.internal.policy.DecorView.draw(DecorView.java:780)
at android.view.View.updateDisplayListIfDirty(View.java:19086)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:686)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:692)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:801)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:3327)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:3124)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2493)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1468)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7208)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1004)
at android.view.Choreographer.doCallbacks(Choreographer.java:816)
at android.view.Choreographer.doFrame(Choreographer.java:751)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:990)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6692)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)