Need help with SG hair mod Hairstyle 26

[mew5151515]

https://unsee.cc/paregitu/

https://unsee.cc/matusero/

https://unsee.cc/tozapise/

 

 

When my character move or use some idle her head and hairline clipping through her hair.

It is seem like problems with hair weight  but i don't know how to fix it.(I know how to use outfit studio but don't know how to use 3D programs) 

 

 

My character use "hairstyle 26" in SG hair pack with this problem for two years (I try to fix it many times but unsuccessful).

But this time I really need some help because this problem make me unable to create machinima.

So can anyone give me suggestion or help me to fix it?