So, I wanted to give Maisie for Teen Jane 8 a try. Absolutely beautiful character. Love her. Only one problem. Something is way f-ed up with this character. Almost every single expression you choose destroys her face. Closed mouth smiles cause her nose to be crushed into her face. Open mouth smiles cause the jaw/teeth to protrude out of her skin. Anything that closes her eyes cause the eyelid to cut through the eyeball. Lots of expressions cause the eyeballs to come out of the face altogether. I mean it is just hugely jacked up. Even the expressions specific to Teen Jane 8 break her face. Does anyone actually own this that might be able to check if the author ever fixed this model? Also, she is not 8.1, definitely just a GF8 character.
Before you go down the rabbit holes in this post below, save the character as a shape and a material preset and apply those to a base G8 or G8.1 and see if that solves it.
Otherwise:
Have you tried to adjust the rigging to shape function? It's simpler than it sounds. Here's a video that shows how to do that:
It that fails you could export the character as an obj in the zero pose at base resolution. Then import it with morph loader pro, and then do the adjust rigging to shape as above. And ERC freeze it. I'm fairly certain that would work. Only caveat is, if the character has any HD details, that would get lost.
Here's a cool video that shows how to that: