Issue with Datstore and string values?

So I'm getting an error saying

19:48:28.816 - ServerScriptService.Leaderboard:51: bad argument #3 to 'Value' (string expected, got boolean) 19:48:28.817 - Script 'ServerScriptService.Leaderboard', Line 51 19:48:28.817 - Stack End

The value's I'm trying to save are IntValue's and StringValue's

**Here's my script : **

-- ayy lmao 

local DSService = game:GetService("DataStoreService"):GetDataStore("PlayerSaveData")
game.Players.PlayerAdded:connect(function(plr)
    local uniquekey = "id-"..plr.userId

    local m = Instance.new("Model", plr)
    m.Name = "leaderstats"

    local i = Instance.new("IntValue", m)
    i.Name = "Cash"

    local w = Instance.new("IntValue", m)
    w.Name =  "Wins"

    local inb = Instance.new("BoolValue", plr)
    inb.Name = "InBattle"
    inb.Value = false

    local GB = Instance.new("BoolValue", plr)
    GB.Name = "GroupBonus"
    GB.Value = false

    local ID = Instance.new("BoolValue", plr)
    ID.Name = "IsDueling"
    ID.Value = true

    local Skin = Instance.new("StringValue", plr)
    Skin.Name = "CurrentSkin"
    Skin.Value = "ClassicSword"

    local MissingLink = Instance.new("StringValue", plr)
    MissingLink.Name = "MissingLink"
    MissingLink.Value = "false"


    if plr:IsInGroup(2852908) then
        if GB.Value == false then
            plr:WaitForChild('leaderstats'):WaitForChild('Cash').Value = plr:WaitForChild('leaderstats'):WaitForChild('Cash').Value + 500
            GB.Value = true     
        else
            end
    end


    local GetSaved = DSService:GetAsync(uniquekey)
    if GetSaved then
        i.Value = GetSaved[1]
        w.Value = GetSaved[2]
        GB.Value = GetSaved[3]
        Skin.Value = GetSaved[4]
        MissingLink.Value = GetSaved[5]
    else
        local NumbersForSaving = {i.Value, w.Value, GB.Value, ID.Value, Skin.Value, MissingLink.Value}
        DSService:SetAsync(uniquekey, NumbersForSaving)
    end
end)

game.Players.PlayerRemoving:connect(function(plr)
    local uniquekey = "id-"..plr.userId
    local Savetable = {plr.leaderstats.Cash.Value, plr.leaderstats.Wins.Value, plr['GroupBonus'].Value, plr['IsDueling'].Value, plr['MissingLink'].Value, plr['CurrentSkin'].Value}
    DSService:SetAsync(uniquekey, Savetable)
end)