[FE] Trying to make a leaderstat that goes up by 1 every 30 seconds, help?

Hi, I'm using filtering enabled to make a leaderstat that goes up by 1 every 30 seconds and it doesn't seem to work, all it does is break the leaderstat and it doesn't work. Also, I am trying this in-game when it doesn't work. It is in serverscriptservice and is a normal script. Error: '10:43:15.738 - ServerScriptServer.Level:17: ')' expected near ' I've tried so many times to fix this script and it's still not working.

local function onPlayerJoin(player)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player
 
	local level = Instance.new("IntValue")
	level.Name = "Level"
	level.Value = 0
end

game.Players.PlayerAdded:Connect(onPlayerJoin)

local function timePassed()
	level.Value = level.Value + 1
end

wait(30):Connect(timePassed()

Any tips or any other helpful things? Thanks -Aidan