all fields null

[rainsim]

I am trying to enable custom weather node on Modeler 17.1 and run it the example that attached but unfortunately I got back null..
Of course the structure of url that called by R has been changed and appears bad request and "null".
How I can to edit that to work properly?

I got the error below from R:

Error: unexpected SPECIAL in:
"for (i in 1:nrow(modelerData)) {
station <- c(station,as.character(modelerData$%%"

theDate <- c(theDate,as.character(modelerData$%%recorddate%%[i]))
Error: unexpected SPECIAL in " theDate <- c(theDate,as.character(modelerData$%%"
}
Error: unexpected '}' in "}"
print(station)
NULL

Please advise,
Costas