When I am running the workflow for the Model Comparison macro, this error shows up "Error in plot.new()". This is when I am initializing the macro. Due to this when I run the model comparison tool, the Confusion Matrix Section of the report is missing. Anyone know how to fix this? I am currently enrolled in Udacity's Predictive Analytics for Business Analysts if that provides context.
Loading in the macro from Predictive District:

Running a Decision Tree and validating model with 70/30 split:

Report:
