Why is my script not working?

My Script works In Studios but Not Online for some reason? The Health loads up but you can't damage it at all. Works perfectly fine in Studios Please help. Script 1

local h = Instance.new("Humanoid")

h.Parent = script.Parent

local Human = script.Parent:WaitForChild("Humanoid")

while true do
	wait(0.01)	
	if script.Parent:FindFirstChild("Humanoid") == true then
	wait(2)	
	script.Parent:FindFirstChild("Humanoid").MaxHealth = 5000
	wait(2)
	script.Parent:FindFirstChild("Humanoid").Health = 5000
	end
end

Script 2

local Destroyed = script.Parent:FindFirstChild("Humanoid")
local sound = script.Parent:FindFirstChild("Boom")
local Human = script.Parent:WaitForChild("Humanoid")

while true do
	wait(0.01)
local Human = script.Parent:WaitForChild("Humanoid")	
	if Destroyed.Health == 0 then
		sound:Play()
		script.Parent:remove()
	end
end

Thank you.