Grow with solar radiation acquisition amount

hi! help me.

I make this program.
A program that selects and grows the value with the largest solar radiation acquisition amount.

Indicates a reference program.
Thank you (11.4 KB)

The program use this algorithm↓

I try to connect this file(Tim_forum) and solar radiation data(ladybug).
but error…

maybe It seems that the data type does not match。

Please listen to anything!