I'm new to programming.

Many thanks to Big Mike for helping me get started with his Symmetry system to learn how to use NT and C.

Here is my error...

Looks like you have an error in totally different script.

Error is in line 52 in file Ellis.cs

It involves method "Rising"
and you have double in parameters instead of dataseries.
Try remove [0] or [1] or whatever you have in Rising parameters

Thank Roonius. I got rid of the Rising method and all is well.