java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Context.isUiContext()' on a null object reference
at android.view.ViewConfiguration.get(ViewConfiguration.java:502)
at android.view.View.<init>(View.java:5320)
at android.view.View.<init>(View.java:5470)
at android.view.ViewGroup.<init>(ViewGroup.java:698)
at android.view.ViewGroup.<init>(ViewGroup.java:694)
at android.view.ViewGroup.<init>(ViewGroup.java:690)
at android.view.ViewGroup.<init>(ViewGroup.java:686)
at com.google.android.gms.ads.BaseAdView.<init>(com.google.android.gms:play-services-ads-lite@@18.1.1:1)
at com.google.android.gms.ads.AdView.<init>(com.google.android.gms:play-services-ads-lite@@18.1.1:1)
at com.amaze.filemanager.ui.fragments.MainFragment.showAdmob(MainFragment.java:374)
at com.amaze.filemanager.ui.fragments.MainFragment$1$1$1.run(MainFragment.java:305)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7720)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:612)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:997)