risk_matrix_points_plot not working

[RomaneBernard]

When running the following code:

# Generate an empty 5x4 matrix
matrix_structure <- risk_matrix_structure(5,4,NA)

# Monetary risk for one asset
risk_coordinates <- risk_calculation(matrix_dimensions = matrix_structure,
                                     id = 1,
                                     chs = 4,
                                     cof = 18232,
                                     asset_type = "6.6/11kV Transformer (GM)")

risk_matrix_points_plot(matrix_structure,
                        dots_vector = risk_coordinates,
                        dot_radius = 4)

as per the Individual Asset Risk example (here - only replaced pof by chs and id = "Transformer1" by id = 1), I am running into the following issue:

Error: javascript is not defined
ReferenceError: javascript is not defined

I have tried manually adding the javascript files to my directory and I can access them, but I am then running into a second error:

d3.nest() is not a function

I have tried replacing with group() as per this comment but I am not familiar with javascript and this is not working either.

Am I missing something?