java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.fragment.app.FragmentActivity.runOnUiThread(java.lang.Runnable)' on a null object reference
	at com.entitcs.office_attendance.fragments.MonthReportFragment$5$2$1.run(MonthReportFragment.java:326)
	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:923)