Its supposed to add 1 point to the leader board every time you jump. The problem is in the title.
local JumpValue = game.Players.LocalPlayer.leaderstats.Currency.Value
local player = game.Players.LocalPlayer
local Char = player.Character
local Humanoid = Char.Humanoid
Humanoid:GetPropertyChangedSignal("Jump"):Connect(function()
JumpValue = JumpValue + 1
end)

3 comments
also DO NOT ADD THE VALUES ON CLIENT otherwise it could go wrong
Didn't seem to work.
yeah because local player cannot be accessed on server