Link to the game
https://www.chess.com/analysis/game/live/68468717581?tab=review
My reason to play Rh7 was to prevent mate when black rook on h2 arrives in c2 after forcing my king to e1
It's not a game losing blunder but goes from an advantage to essentially even. Black also has no mate there after Rc2 because after Rh1+ 2. Kf2 R8h2+ 4. Ke1 Rc2 you just take the h1 rook. With your rook on c7, in that line, you're threatening the c7 pawn and advancing the a6 pawn
Link to the game
https://www.chess.com/analysis/game/live/68468717581?tab=review
My reason to play Rh7 was to prevent mate when black rook on h2 arrives in c2 after forcing my king to e1