The quest where you have to take a soaked taproot to the mushroom house and put it into the wall. Well I go to the lift and press "E". Nothing happens I dont go up the game freezes. So i open console command and type in "TFC" now this should allow me to move around without colision detection on. Nothing happens though. Turn off TFC and I can move the left, right, forward and backwards. But also move through the walls as well. The game will then teleport me to the top of the lift where I can move around freely.

Going back down the game will freeze again and I end up falling to my death if I use the TFC commands again to try and teleport back to the bottom.

Do you have FNIS or any other mod dealing with animations?

Yes I have some animation mods as well as FINS.

I found the problem and fixed it. For those who don't know its something to do with animation mods. Download the updated version of FINS and run it. This will solve the problem. If you need a link to the nexus page PM me.