Ampliflyer,
What program and version was your file created from?
I got the same error as you. What my take on it was that the arc's were a bunch of small line segments and additionaly
something was corrupt in the file on export since it would do roughs and the roughs actualy cut into the stock and then when you tried
doing a finish it would overlap the roughs and as such the error. Modifying / deleting the original profile you drew didn't do any good, even
something redrawn in the file turned out as a bad.
I have attached a file you can fool with similar to yours , it's close but not exact, but was done in a different originating file.
As shown i had no problems with the attached.
RICH