Butterfly Sample Case Error

When I run butterfly outdoor airflow sample case, the error Appear like this?what’s wrong with it ?
I have install the blue-CFD and butterfly ver04
image|690x275 01_0_outdoor_airflow.gh (427.1 KB)

Hi - please visit the Ladybug Tools forum for issues with the Butterfly plug-in:
https://discourse.ladybug.tools/
-wim

OK,thanks