Level system don't work

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16

–Zombie Script

script.Parent.zombie.Humanoid.Died:Connect(function()
	print('It is dead!')
	script.Parent.Parent.LevelsInfo.playerXP.Value += 15 --Put the directory to the playerXP 
	game.ReplicatedStorage.XPtrigger:FireClient(game.Players[script.Parent.Zombie.creator.Value])
end)

–Local

game.ReplicatedStorage.XPtrigger.OnClientEvent:Connect(function()
	print('Received!')
    script.Parent.XP.Visible = true -- Directory to the ui
    wait(1)
    script.Parent.XP.Visible = false
end)