Hello!

I am playing on PS3 Oblivion Game of the Year Edition. Done main quest and Knights of the Nine one. Currently in Shivering Isles and encountered a problem which probably will stop me from completing this expansion. On quest Rebuilding the Gatekeeper bone tree in a dungeon did not spawn properly. I reloaded from a save before starting a quest and still no interaction part of that bone tree, the lamp is hanging in the air. Tried even to touch that thin air in hopes I could catch something, but nope.

Any way of repairing it? It is PS3 so... uh. End of the Shivering Isles for me?