[Solved itself] Datastore problem with saving/loading, any ideas how to fix this?

Alright, so I've recently found a problem with loading my data. If I rejoin the game with another player present, it will just load his size and his cash. I'm not 100% sure if the problem occurs when saving or loading.

local service = game:GetService("DataStoreService")
local datastore = service:GetDataStore("PlayerSize4")


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





    local datatoload = {}
    local leaderstats = Instance.new("Folder")
    leaderstats.Name = "leaderstats"
    leaderstats.Parent = plr

    local size = Instance.new("IntValue")
    size.Name = "Size"
    size.Parent = leaderstats


        local cash = Instance.new("IntValue")
    cash.Name = "Cash"
    cash.Parent = leaderstats


    local success,errorm = pcall(function()
         datatoload = datastore:GetAsync("Size-"..plr.UserId)
    end)

    if success then
if datatoload ~= nil then
        plr.leaderstats.Size.Value = datatoload[1]
            plr.leaderstats.Cash.Value = datatoload[2]
                print("Data loaded")
            end
    else
        error("Data could not be loaded.")
    end

end)






game.Players.PlayerRemoving:Connect(function(player)
    local datatosave = {}
    datatosave[1] = player.leaderstats.Size.Value
    datatosave[2] = player.leaderstats.Cash.Value
    local success,errorm = pcall(function()
    datastore:SetAsync("Size-"..player.UserId, datatosave)
    end)

    if success then
        print("Data saved")

    else
        error("An error occured while saving")
    end

end)