Is your handle broke? Try focusing on each side of the handle, left and right. I think it's the left side that is the important one that will fully open the gate. An 01 at work had the handle break just leaving the 2 plastic supports it pulls on. Had to then pull 1 of the things with pliers to open it up.
So try grabbing as far to the outside of the handle as you can, and yank up. Like I said, I think the left side of the handle is the side that matters