Bone Problem when Importing to GMOD

Hello, when I’ve recently tried to Import Sport or make a custom skin for Tracer in GMOD (sleepy one - t-shirt and shorts), I keep having a problem with her bones.

I did once managed to assign Heavy’s Polar Jacket, Scouts Scarf and h3h3 Beanie hat without interrupting the original bones in all scenes:
ow_tracer_Head
ow_tracer_Hair
ow_tracer_Goggles
ow_tracer_Body
scarf_soccer_sneaky_scarf_scout
eotl_sheavyshirt_heavy_winterjacket
black_beanie

But with Importing customized skin, got a bone problem, which I’ll post the second Image.
I just can’t explain clearly. And I took and extracted contents of Lenoax’s model.

Same occurs when I’m trying to import Sport Skin. (why did I just typed Sport skin again?)

And about this customized skin. Here it is:
Imgur
Imgur