Android :: Error With Custom Made Popup Marker / Way To Fix

I have a made custom popup marker. There is a button on the popup that shows up when you click on a marker on the map. Its function is to open a new activity when the button is clicked. So in the onClick function of the setOnClickListener() call, I created a new object of the Activity class and used that to call the various methods that needs to start the activity but I keep getting a java.lang.NullPointerException thrown regarding the line that calls the startActivityForResult() method. Not sure of the best way to go about this. I have pasted a sample code...