for error in your screenshot, delete line 944 [ACCESSORY_IDs.ACCESSORY_Genetic_Armor] = "_Genetic_Armor", in accname.lua
if you still get errors with lua, please check name and ID in Lua files yourself.
it's called Wings of Fallen Angel ....same as angel wing and backpack
and here's link if you want to check it http://www.mediafire.com/?784xf6g9a9tk5sz