Import errors - no texture and could not find bind pose

Hey, I got a weapon ( .fbx format) and when I want to import it to Unreal Engine it gives me 2 weird errors and brings 2 bugs with it:

  1. The materials are white
  2. The weapon isnt at the center and that messes up all the animations and when i drag it into the world the weapon isnt even nearby to the pivot

Screenshots:

239540-errors.png