unable to divided lofted surface

Hi everybody,

  I apologise if this s a repeat but Im new to grasshopper. Im unable to divide my lofted surface. I drew the closed curve on rhino and did everything else on grasshoper. Im trying to build a facade for my paramateric tower but the lofted surface is not being recognised.

If anybody has a solution i would really appreciate it.

NEW.3dm

new.gh

Ive attached the file Im working on.