So I had asked a while ago for help with a command block run shop using scoreboard commands. I had a scoreboard (dummy) titled PlayerInfo. I wanted to make it so that you press a button and it sells the item to you ONLY IF you have enough money. It's my single-player command block world, so I made the scoreboard apply for me. A player is named Money, to represent the money the player has. The thing is, I used this command:

execute @p[score_PlayerInfo_min=1000] ~ ~ ~ scoreboard players remove Money PlayerInfo 1000

It does not work. I am playing in 1.12, and I know command format changed, but I don't get it. Can anyone help?