SF314-511 won't sit right and one side shakes

I don't know what has happened to my laptop but it no longer sits right on any surface. The bottom right part seems lifted and the whole laptop moves while I'm typing. I've observed every part of the body and nothing seems to be bent. Everything looks straight but the laptop no longer sits flat if I open the screen and this problem gets bigger when the screen is fully opened at 130 degrees.

When the screen is closed the laptop sits right and flat and nothing shakes. But once the foot of the screen is engaged (the part that lifts the laptop) makes the laptop shakes around.