How would you increase a stat when a player touches a brick?

I've been trying to change the value of a stat "level" when a brick is touched. I have a LocalScript in the brick with this code:

function OnTouched(Part)
	local level
	print("Touched")
	level.Value = level.Value + 1
end

script.Parent.Touched:Connect(OnTouched)

And this is the code for the leaderboard:

local function  onPlayerJoin(player)
	print("Joined")
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player
	
	local jumps = Instance.new("IntValue")
	jumps.Name = "Jumps"
	jumps.Value	= 0
	jumps.Parent = leaderstats
	
	local level = Instance.new("IntValue")
	level.Name = "Level"
	level.Value	= 0
	level.Parent = leaderstats
	
	local DebounceTime = .5
    local CanJump = true
    local char = player.Character or player.CharacterAdded:Wait()
    local humanoid = char:WaitForChild("Humanoid")
    humanoid:GetPropertyChangedSignal("Jump"):Connect(function()
        if humanoid.Jump == true and CanJump then
            jumps.Value = jumps.Value + 1
            CanJump = false
            wait(DebounceTime)
            CanJump = true
        end
    end)
end	
game.Players.PlayerAdded:Connect(onPlayerJoin)

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Remote = Instance.new("RemoteEvent")
Remote.Parent = ReplicatedStorage

Remote.OnServerEvent:Connect(function(player)
  local leaderstats = player:FindFirstChild("leaderstats")
  if leaderstats then
    for _,v in pairs(leaderstats:GetChildren()) do
      v.Value = 0 
    end
  end
end)

Now -- Why doesn't the LocalScript in the brick work at all? I assumed that it was a problem with just level.Value = level.Value + 1. But when I put the print ("Touched") into the script, it never displayed it into the console.

You didn't set "level" to anything and LocalScripts don't run in anything that isn't a descendant of your player. Put it in a regular Script.

local waittime = 3
local debounce = true
-- This debounce variable prevents the script from spamming points

function OnTouched(hit)
	if hit and hit.Parent and debounce then 
		-- Make sure hit is isn't nil and debounce is ready
		debounce = false
		local player = game.Players:GetPlayerFromCharacter(hit.Parent)
		-- Get the player from whatever bodypart hit the brick.
		if player then 
			-- Make sure a player hit the brick
			local leaderstats = player:FindFirstChild("leaderstats")
			-- Make sure they have the leaderstats Value.
			local level = leaderstats and leaderstats:FindFirstChild("level")
			-- Make sure they have the level Value in leaderstats.
			if level then 
				level.Value = level.Value + 1
				wait(waittime)
			end
		end
		debounce = true
	end
end

script.Parent.Touched:Connect(OnTouched)

I'm not too sure about this, but you didnt set anything for level's variable, meaning that the game doesn't know what level is. Something you CAN do however is change it to:

local level =  leaderstays:FindFirstChild("level")

Also, local scripts only work in startergui, starterplayer, and starterpack.