Catenary runtime warning

I have followed the youtube clip

and I am having issues with my Rhino and Grasshopper with the curves I have made.

It says “Chain is Tuat”

Please Help, File is attached below
Rhino Kangaroo Pavilion - Idea Two 15519.3dm (38.4 KB)
Grasshopper Kangaroo Pavilion - Idea Two (12.1 KB)

The “Chain is taut” warning is given when the desired length of the catenary curve is less than the distance between the end-points. In these cases a solution is not possible, and you’ll get a straight line connecting the ends plus the warning.