Character is nil value?

I'm trying to change the character's scale but the character is nil apparently.

My code is here: https://pastebin.com/raw/3x3GDWQz

Can someone help please.

u dont need to do

game.Players.PlayerAdded:Connect(function()
	while wait(.5) do
		local players = game.Players:GetChildren()
		for i = 1, #players do
			local Humanoid = players[i].Character.Humanoid or players[i].Character.Humanoid:Wait()
			Humanoid.HeadScale.Value = players[i].leaderstats.Height.Value /50 + 1
			Humanoid.BodyHeightScale.Value = players[i].leaderstats.Height.Value /50 + 1
			Humanoid.BodyWidthScale.Value = players[i].leaderstats.Height.Value /50 + 1
			Humanoid.BodyDepthScale.Value = players[i].leaderstats.Height.Value /50 + 1
			Humanoid.HeadScale.Value = players[i].leaderstats.Height.Value /50 + 1
		end
	end
end)

instead make it easier by doing

game.Players.PlayerAdded:Connect(function()
	while wait(.5) do
		local players = game.Players:GetChildren()--says players = every local player
			local Humanoid = players.Character.Humanoid--means ofcourse the local player.Character.Humanoid
			Humanoid.HeadScale.Value = players.leaderstats.Height.Value /50 + 1--means local players leaderstats
			Humanoid.BodyHeightScale.Value = players.leaderstats.Height.Value /50 + 1
			Humanoid.BodyWidthScale.Value = players.leaderstats.Height.Value /50 + 1
			Humanoid.BodyDepthScale.Value = players.leaderstats.Height.Value /50 + 1
			Humanoid.HeadScale.Value = players.leaderstats.Height.Value /50 + 1
		end
	end
end)