Game-breaking bug glitch in Requiem (unable to reach lever to pick up)

[ozzyoscy]

In level 7 of Requiem, you have to pick up two levers. One of the levers should be on a shelf in a room past a piston, but in my game the level is on the floor, under the shelves, in the far corner. It's impossible to reach or get out.

Is there any fix to this? Or does anyone have a save of this point of just after? Otherwise this is the end of the game for me...