java.lang.IllegalStateException: FragmentManager has been destroyed
	at androidx.fragment.app.FragmentManager.enqueueAction(FragmentManager.java:1878)
	at androidx.fragment.app.BackStackRecord.commitInternal(BackStackRecord.java:329)
	at androidx.fragment.app.BackStackRecord.commit(BackStackRecord.java:294)
	at com.entitcs.office_attendance.camera.FaceTrackerActivity.openSelfieFragment(FaceTrackerActivity.java:1141)
	at com.entitcs.office_attendance.camera.FaceTrackerActivity.access$300(FaceTrackerActivity.java:111)
	at com.entitcs.office_attendance.camera.FaceTrackerActivity$6$1.onPostExecute(FaceTrackerActivity.java:980)
	at com.entitcs.office_attendance.camera.FaceTrackerActivity$6$1.onPostExecute(FaceTrackerActivity.java:958)
	at android.os.AsyncTask.finish(AsyncTask.java:771)
	at android.os.AsyncTask.-$$Nest$mfinish(Unknown Source:0)
	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:788)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loopOnce(Looper.java:240)
	at android.os.Looper.loop(Looper.java:351)
	at android.app.ActivityThread.main(ActivityThread.java:8423)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:584)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1013)