I'm not familiar with the York, but I checked out their web site and looked at pictures. I would email
York Landscape Rakes, Rotary Brooms, Stone Rakes, Sweepers, and Scarifiers Manufactured by York Modern Corporation and tell them what happened and ask if it should bend like that. Then I would ask if it's covered or if they have a repair they would suggest. Ask if it's an ordinary steel, and if it's available. From your description it looks like it's welded on. If the piece that's welded on is the piece that's bent, and it's a mild cold rolled or hot rolled steel it can be fixed a couple different ways. You can grind out the welds and make a new piece and weld it back in, or you can cut the piece that's there and straighten it and weld the cuts back closed and even weld some strips of steel over it to reinforce it. Lastly, you can get some spray paint from York and cover up some of the mistake after it's repaired.