ladybug-Input parameter _selectedSkyMtx failed to collect data!

Hello there,

I am getting this error while running ladybug

I tried for three files with different objects and ended up with same error. I download ghpython too.
help me.!

Is the “_runit” input on the “genCumulativeSkyMtx” component set to true?
Its the only possible issue i can extract from the picture.