How would I make a simple lava brick?

You are suppose to already to not request a script but, give a script that has errors in to so that other people can figure out what is wrong with it, but since the script is so easy I will give it to you.

script.Parent.Touched:connect(function(part)
	if part.Parent:FindFirstChild("Humanoid")then
		part.Parent:BreakJoints()
	end
end)

When the part is touched, it will try to find a humanoid, if there is a humanoid then it will break it's joints.