Trim Solid error

[Nico_smith (nico)]

HI, I have stuck in this error of 2 days. Hope some grasshopper master solve this error. I want to cut a Brep by trim solid/ solid different, by it keep showing error about the brep it not close, but I have added the Brep cap all the holes should be caped.
Thank you

wave.3dm (3.4 MB)
wave.gh (29.2 KB)

[Eef_Weenink]

Boundary Surface to first make a solid before twisting.

wave_eef.gh (24.3 KB)

[martinsiegrist]

I’d create the base shape with a revolution.

wave_mrtn.gh (29.3 KB)

[Nico_smith (nico)]

thank you

[Nico_smith (nico)]

Dam thank you for rewrite my code to a simpler one, yes this is the shape that I need