Copied a tab with a pivottable and pivottable graph

So i copied tab of a spreadsheet with a pivot table and puvottable graph...but now when I go and rrfresh the pivottable everything inputs fine...but the graph show the original tabs results...I go to change the data source for the graph but it us all grqyed out....any suggestions besides redoing eacg graph?

Adding a new graph in Pivot table doesnt take much. In my opinion if graph goes wrong its always better to get a new one.