Warning: Arc.CenterPoint expects argument type(s) (Autodesk.DesignScript.Geometry.Arc), but was called with (Autodesk.DesignScript.Geometry.Arc).

Warning: Arc.CenterPoint expects argument type(s) (Autodesk.DesignScript.Geometry.Arc), but was called with (Autodesk.DesignScript.Geometry.Arc).

Change the Level on the input and see if it resolves. Seems like the Node is wanting a singular Arc, and not a List of Arcs
I change it but the problem still exists
What if your fatten the list and/or only feed it one single arc. Does it still break?
Use another function input node, such as List.Map or Function.Apply.
Thank you very much list.map gave me the result without any problems.
@jacob.small What about this problem?