I need help with my tower script

[MrUserNumber (User)]

1. What do you want to achieve? Keep it simple and clear!
   I want to make it so whenever I use this function it will add height the the tower. It keeps coming back with an error that says

ServerScriptService.Script:4: attempt to call missing method 'addHeight' of table

3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
   I could not find any solutions
   Here is my module for it

local Tower = {}
Tower.__Index = Tower

function Tower.new()
	local newTower = {}
	setmetatable(newTower, Tower)
	
	newTower.Height = 0
	
	return newTower
end

function Tower:addHeight()
	self.Height = self.Height + 5
end

return Tower

Here is the script

local TowerModule = require(game.ReplicatedStorage.Tower)

local newTower = TowerModule.new()
newTower:addHeight()

[bytesleuth]

function Tower.new()
	local newTower = {}

	newTower.Height = 0
	
	return setmetatable(newTower, Tower)
end

[MrUserNumber (User)]

It still comes out with the same error.

[ThanksRoBama (Emma)]

@MrUserNumber

Tower.__Index = Tower

It’s __index (lowercase i)