Link.addPoint called with a Point that does not have real numbers: Point(NaN,88.02284749830794)

i m having an error adding links to model i dont get what this error means
this is the link i m trying to add

this is my link template
this is the error i m getting

It looks like you are calling computePoints/addPoint in your custom Link class. You’ll need to debug why it is trying to add an invalid link point.