Why can I not access ServerStorage from a Module script?

So I wanted to load levels in my game via a local script originally. Then I realised this would mean the levels couldn't be in ServerStorage as the client cannot see objects within it.

So I decided to use a Module to load in the level: This is called when a button is clicked in players GUI

function loadLevel(levelid)
    if Workspace:FindFirstChild(levelid) == nil then
        Level = game.ServerStorage:FindFirstChild(levelid):Clone()
        Level.Parent = Workspace

    end
end

return loadLevel

This works fine in solo but online it says that ServerStorage isn't a member of DataModel etc etc, so is there a way to load in levels from ServerStorage taking input from localscripts?

Or would I just have to replace every localscript in the buttons to scripts? (which works but isn't really what I wanted to do because I prefer to use game.Players.LocalPlayer)