Error When Running 15a XS Dimensions, Level 1 Tool

[garnercjoe]

I've had success with the FG toolbox up until the 15a tool. I tried running this tool on my own data and the tutorial data - they both result in the same error (below). I'm more familiar with python and GIS, not familiar with R, apologies if this is something obvious.

I'm Using:
Arcgis Pro 3.2.0
arcgis binding 1.0.1.306
R 4.3.3
FluvialGeomorph-toolbox-0.2.1