help my playermodel have a weird black effect

Greeting,i am totaly new in the garry’s mod modding, i’ve been working in a models for the past few weeks but he’s having somes weird black shader effect on him
(hope is not the wrong post for asking help)

But in the PlayerModel selection everything is normal :

The problem could be the lightwarp, you could try searching for a lighter one.

I believe that’s caused by having the root bone under the ground so the lighting is calculated from there.