Twisted toilet

[user 11440]

A while back we had a group come in from the Catholic church, and replace our bathroom floor(trailer, so they laid 3/4 ply over the existing floor), replaced the toilet with one that is a bit higher. My wife has Cerebral Palsy and she is wheelchair bound, so this toilet was designed to be easier for her to transfer to from the chair.
The problem is, she has severe shaking and tremors, and she hits the toilet pretty hard when she sits down. She cannot help this.
She has literally hit it so hard, so many times, and her tremors are so bad, that the mounting stud on one side of the toilet has come loose, and the toilet has literally twisted. It also has a shim on that side.




The problem is, I'm not sure what is under there. Everyone I talk to says that there is simply a metal or plastic ring screwed down to the floor, a wax ring is placed, the toilet sits on this, and the studs connect to that metal ring and the toilet is bolted down that way.
Problem is, I really think I remember they had some type of extension, or neck that sat down in the hole cut in the new plywood floor, that connected to the drain pipe the toilet sets over. But it was a long time ago, and I might be incorrect.
Does anyone here know or understand what I'm talking about, and can you help me sort his so I know what I need to do to repair this before winter sets in?
Edit: the group that did this was volunteer, and I hsven't a clue how to find any of them to ask about it. They were not from this area.

 

[Matt30]

Turn the water off to the toilet, then flush. Take the water supply hose off, and unthread the two nuts coming thru the toilet base. Lift the toilet (bail the water out first, I use a wet vac) and replace the wax ring and bolts.

When the toilet is up, clean all that old white silicone off the base, clean it up and clean the floor where the toilet sits. Re-set the toilet on the new ring and snug up the toilet, do not go Incredible Hulk strong on it, or it will break. Get yourself a tube of clear exterior use silicone (not kitchen/bath stuff) and caulk 3/4 the way around the toilet, leave it open at the back.

Once the caulking sets up, that should hold the toilet secure to the floor enough that it won't twist. That's what I do in wheelchair accessible washrooms and have never had an issue with the toilet coming loose.

 

[user 11440]

Thank you.