How to i Create a Repawn Script And the Player receives Cash and XP?

with this script i want Create that Noob is Model and if noob died then Respawn noob Give Xp and Cash and error is "plr(a nil value)"

local model = script.Parent
local backup = model:Clone()
plr = game.Players.LocalPlayer
Cash = plr:WaitForChild("stats").Cash
XP = plr.stats.XP

script.Parent.Humanoid.Died:connect(function()
    wait(1)
    model:remove()
    Cash.Value = Cash.Value +30
    XP.Value = XP.Value +10
    model = backup:Clone()
    wait(4)
    model.Parent = game.Workspace
    model:MakeJoints()
end)