java.lang.NullPointerException: Attempt to invoke virtual method 'void com.entitcs.office_attendance.fragments.MonitorProject$WorkingProjectListAdapter.updateList(java.util.ArrayList)' on a null object reference
	at com.entitcs.office_attendance.fragments.MonitorProject.sortByProjectWorking(MonitorProject.java:647)
	at com.entitcs.office_attendance.fragments.MonitorProject.sorting(MonitorProject.java:575)
	at com.entitcs.office_attendance.fragments.MonitorProject.access$000(MonitorProject.java:85)
	at com.entitcs.office_attendance.fragments.MonitorProject$5$3.onCheckedChanged(MonitorProject.java:293)
	at android.widget.CompoundButton.setChecked(CompoundButton.java:222)
	at android.widget.CompoundButton.toggle(CompoundButton.java:139)
	at android.widget.CompoundButton.performClick(CompoundButton.java:144)
	at android.view.View.performClickInternal(View.java:7755)
	at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
	at android.view.View$PerformClick.run(View.java:30746)
	at android.os.Handler.handleCallback(Handler.java:1013)
	at android.os.Handler.dispatchMessage(Handler.java:101)
	at android.os.Looper.loopOnce(Looper.java:226)
	at android.os.Looper.loop(Looper.java:328)
	at android.app.ActivityThread.main(ActivityThread.java:9224)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:594)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)