Id Loader Script - Multiple Values in a Leaderstats format?

My Question is relevant to this code:

local DSService = game:GetService('DataStoreService'):GetDataStore('JerryYoutube-Spells-Place-5')
-- Name of Data Store Must be random, long or obscure to make sure that it is not taken as an ID for another Store of Data
game.Players.PlayerAdded:connect(function(plr)
    local loaded = script.Parent.loaded
    loaded.Value = 0
    -- Def Vars
    local IdPlr = "id-"..plr.userId
    local ls = Instance.new("IntValue", plr)
    -- Ls = LeaderStats
    local ls2 = Instance.new("IntValue",plr)
    local sv = Instance.new("IntValue")
    -- Save Value
    ls.Name = 'ls'
    -- if u change ^ u must change them all
    ls2.Name = 'ls2'
    sv.Parent = ls
    sv.Name = 'Spell_Count'
    -- U can change ^ if u want - but u must change all the other references as well
    local sv2 = Instance.new("IntValue")
    sv2.Parent = ls2
    sv2.Name = "Rank"


    -- Get Async
    local RVFS = DSService:GetAsync(IdPlr)
    -- Return Values From Saved (Data)
    if RVFS then
        sv.Value = RVFS[1]
        sv2.Value = RVFS[1]
    else
        local NFS = {sv.Value}
        local NFS2 = {sv2.Value}
        --  Numbers for Saving (Int-Type) operand + , num(spells)
        DSService:SetAsync(IdPlr,NFS)
        DSService:SetAsync(IdPlr,NFS2)
    end
    loaded.Value = 1
    Admin_Check(plr)
end)

game.Players.PlayerRemoving:connect(function(plr)
    local IdPlr = "id-"..plr.userId
    -- Since it has the identifier "Local" it cannot be referenced in between functions; because of OOP
    local ST = {plr.ls.Spell_Count.Value}
    local ST2 = {plr.ls2.Rank.Value}
    DSService:SetAsync(IdPlr,ST)
    DSService:SetAsync(IdPlr,ST2)
end)

function Admin_Check(plr)
    -- Function Deals with the connection of Clients to the Server and helps the main function check if the User is an Admin
    -- Takes an Input of player
    -- GSP : Get Spell count of Player
    print(game.Workspace.Scripts.Storage.IdLoader.loaded.Value)
    local DSService = game:GetService('DataStoreService'):GetDataStore('JerryYoutube-Spells-Place-5')
    local GSP = game.StarterGui.GSP
    local Rank = game.StarterGui.RankControl
    GSP.Enabled = false -- Changes the GetSpellCount of Player Screen Gui to not show
    if game.Workspace.Scripts.Storage.IdLoader.loaded.Value == 1 then
        print("Loaded TRUE")
        end
    if plr.UserId == 92471106 then
        print("Owner JerryYoutube is Online!")
        print(plr.ls.Spell_Count.Value)
        print(plr.ls2.Rank.Value)
        GSP.Enabled = true -- Changes the GetSpellCount of Player Screen Gui to show
        Rank.Enabled = true
    elseif plr.UserId == 63044886 then
        print("Admin tjminecraft1 is Online!")
        GSP.Enabled = true
        Rank.Enabled = true
    else 
        GSP.Enabled = false
        Rank.Enabled = false
    end
    GetRank(plr,plr.ls2.Rank.Value)

end

function GetRank(plr,rank)
    print(rank)
    print(plr)

end

And I would like to know why the values for both no longer save in-game. As I tested this code with Just 1 leaderstats and 1 value in that leaderstats (ls and sv) and It worked. i would Like to know why it doesn't work and please can someone patch it up so that I can store 2 values in the one leaderstats table and save both when the player (plr) leaves. And loads their data (plr) when they return.

Thanks for any help you can give.