ChartsEngine - Copy chart to another stack

[Roger.E.Eller at sealedair.com]

This is my first time using ChartsEngine 1.0  (bought with a bundle a few
years ago).  Anyway, I modified the example line chart and had it working
great. I copied all of the groups of the chart into another stack, and the
copy gives me a 'hint' of an error.

error: 347,0,0
76,1350,17
144,1350,1
490,1349,1
253,1348,1
Hint: chartsdelete

Can someone provide a clue about this hint?  Also, I want to use my chart
in a revlet.  How do I include ChartsEngine in the revlet?

Thank you!
~Roger