God of war collection on PS3 Bugs, help needed.

The problem is the following, You need to lower the lever to lower the stakes. I did this and collected the chests and the crystal from the corpse, which is hanging on another lever, and then returned to the save point and preserved. Upon arrival back at the place of the stakes with the lever, it turned out that the lever was lowered, and the stakes were raised. It is impossible to go further. How many did not restart the game and the console, to no purpose, tk. the bug itself has survived. There are no other save locations. Please help?