Dynamo_1.1.460 Tilt-series Alignment

Hi, I met a problem when test the new latest Dynamo_1.1.460 Tilt-series Alignment.
The problem is following:
When I run the workflow until the second procedure, there was an error appearing:
Unrecognized function or variable ‘centeringVector’.
I want to known what the ‘centeringVector’ is?