Errors using Butterfly

currently getting this error when using BlockMesh for outdoor airflow simulation:

        {0;0}
  1. Runtime error (Win32Exception): WindowsError

Traceback:
line 569, in rename_snappyHexMesh_folders, “C:\Users*\AppData\Roaming\McNeel\Rhinoceros\6.0\scripts\butterfly\case.py"
line 588, in remove_snappyHexMesh_folders, "C:\Users*
\AppData\Roaming\McNeel\Rhinoceros\6.0\scripts\butterfly\case.py”
line 38, in script

I’m guessing it’s to do with a file location discrepancy, does anyone know what to change in the python file?