Ragdoll Fix

Hey, could someone fix this Miranda Lawson (Mass Effect) model?
The quality is much better than the other one that is out there. It’s just not working properly. Both finger- and eye-posing are bugged and the rig is completely messed up, which makes the model impossible to work with.
Unfortunately, I was not able to contact the original uploader. I would really appreciate if someone could take on the task.