Digging through revit warnings to find meaning Smale hick up

Revit
, , ,
1

Found this great ussage of dynamo @Konrad_K_Sobon and whanted to execute it but running in to some issuse. What am i missing?

Using:
Revit 2017.2.3
Dynamo 1.3

The used files

https://we.tl/t-99dZsR0NBo

The Error

Error
Error.png10232×2642 728 KB

Thx all in advance