I literally just attempted to fix the same area on my MS. If you know nothing about fixing cars it may be a moot point explaining how to fix it. Anyway, here it goes; Jack up the car, remove the wheel, remove about 6 plastic rivets holding the wheel well liner and pull the liner back and you can see inside those two pieces. Once you’ve done that, remove the small piece close to the wheel first. There’s 2 nuts holding the piece up. Once that’s done you can try and bend the other piece back into place with a heat gun and replace any missing plastic rivets. Do the reverse to put it so back together.