I just fixed the STL.

Original printed fine with S3D, but as soon as you started to scale it, the error in the STL made the slicer freak out and generate faulty GCODE.

(There was like a crack from top to bottom)

Have fun! This should print perfectly now ;-)

Note: The image shows a 3x (or 2.5, not sure) scaled version of the file!

At 1x it just has the size of an actual peanut.