java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources$Theme android.content.Context.getTheme()' on a null object reference
	at android.app.AlertDialog.resolveDialogTheme(AlertDialog.java:245)
	at android.app.AlertDialog.<init>(AlertDialog.java:214)
	at android.app.AlertDialog.<init>(AlertDialog.java:210)
	at android.app.AlertDialog.<init>(AlertDialog.java:148)
	at android.app.ProgressDialog.<init>(ProgressDialog.java:99)
	at android.app.ProgressDialog.show(ProgressDialog.java:184)
	at android.app.ProgressDialog.show(ProgressDialog.java:164)
	at x4.x.T0(Unknown Source:238)
	at x4.x.C(Unknown Source:0)
	at x4.x$f.onClick(Unknown Source:14)
	at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:174)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:236)
	at android.app.ActivityThread.main(ActivityThread.java:8057)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:620)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1011)