Meat King crown

hello all^_^ i made this crown after watching SoHellKite's "meat king challenge" and decided to model a crown...this is my first ever completed model and I've yet to print this but after loading it onto Simplify3D i realized (and knew it would happen) there were great big holes along the top half of the crown.

If anyone repairs this can you tell me how to repair it? I would really like to try myself. also the meat was found on here so full credit goes to Resten.
(this is a stl file. I will l