Just did a quick fly through. First question are you on the Lost Skies discord server. Second, The bones are there. you just need to flesh it out. Unfortunately only the island creator can edit the islands. To Start with I would do a remove orphans to clean up any floating voxel that could snag a player or ship.

I can get a better explanation if you are on the server as I we can jump in to a VC and help you through a few things