Generate not working good

i clicked generate button. but not working goog. can u help me please? here is video link.

Ensure the origin of the mesh and the armature are in the same location and you have applied all scales (Ctrl+A)
Also see the error message at the top of the blender window when you generate the rig. See https://blender.stackexchange.com/questions/77340/rigify-generate-problems