When I load your STL into Orca slicer it shows the first fifteen layers are just a solid rectangle, the remaining sixteen layers are just the walls of the wing layered on top of it.

When I import the G-code it says ' error, G-code path goes beyond maximum print height.' and won't slice it.

I think it might be the 'Z' height that is set in your printer profile configuration where you set the bed size that is possibly giving you the problem.