java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
	at com.entitcs.office_attendance.sales.Collection_List$13.onClick(Collection_List.java:616)
	at android.view.View.performClick(View.java:8160)
	at android.widget.TextView.performClick(TextView.java:16222)
	at android.view.View.performClickInternal(View.java:8137)
	at android.view.View.access$3700(View.java:888)
	at android.view.View$PerformClick.run(View.java:30236)
	at android.os.Handler.handleCallback(Handler.java:938)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:246)
	at android.app.ActivityThread.main(ActivityThread.java:8653)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)