Looking for the mistake in my Grasshopper sketch... anybody can help?

Hello

I´m nearly at the end of what i need to draw in grasshopper, but cant find the mistake!

What i want is to cut out the eight notches from my object, and then split the object into many "slices" on the created grid, so that i can export them and let them countersink.

The perfect solutuion would be, that at the end i have plenty of curls on the grid,with everyone having eight notches,  that i can bake.

also sometimes when i try to bake selected parts i get the error i attached! what does this mean?

i created around every "problem" magenta coloured blob outlines, as the whole sketch seems a bit confusing, sorry.

Hope anyone can solve my problem.

I´m thankfull for every kind of help!!!