Cloning a part with a string value does not work?

-- grimoire code

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local EventFolder = ReplicatedStorage:WaitForChild("EVENTS")
local Remote = EventFolder.ActivateGrimoire

function GetGrimoire(player)
    local Char = player.Character
    local Hurmp = Char.HumanoidRootPart
    local DataFolder = player.Data
    local Grimoire = DataFolder.Grimoire
    local GrimoireName = Grimoire.Value

    if GrimoireName == "None" then

    else
        warn(GrimoireName)
        local GrimoireFolder = script:WaitForChild(GrimoireName):Clone() -- you added an extra "." and forgot to use waitforchild/findfirstchild
        local NewGrimoire = Grimoire.Open
        NewGrimoire.Parent = workspace

    end
end

EventFolder.ActivateGrimoire.OnServerEvent:Connect(function(Player)
    GetGrimoire(Player)
end)


-- datastore code


--[[ i didnt really see any errors here because you are storing the grimoire value correctly (as a string), if the (player.Data.Grimoire.Value) is not a string the code above will still error ]]--

local DataStoreService = game:GetService("DataStoreService")

local myDataStore = DataStoreService:GetDataStore("AA99")

game.Players.PlayerAdded:Connect(function(player)

    local datafolder = Instance.new("Folder")
    datafolder.Name = "Data"
    datafolder.Parent = player

    local Grimoire = Instance.new("StringValue")
    Grimoire.Name = "Grimoire"
    Grimoire.Value = "FireGrimoire"
    Grimoire.Parent = datafolder 
end)

game.Players.PlayerRemoving:Connect(function(player)

    local sucess, errormessage = pcall(function()
        myDataStore:SetAsync(player.UserId.."-Grimoire",player.Data.Grimoire.Value)
    end)
    if sucess then
        warn("Data saved")
    else
        print("Error Saving Data") -- minor spelling mistake
        warn(errormessage)
    end

end)