How would I save a players body position?

I have a script in which every second the DataStore stores the postion into the vector3value. In my script this doesn't work. When the person leaves the game the person will spawn back from his/her last position. Can anyone help about what I am doing wrong? thank you!

local DataStore = game:GetService("DataStoreService"):GetDataStore("PlayersPos")

game.Players.PlayerAdded:connect(function(player)
    local character = workspace:FindFirstChild(player.Name)
    local humanroot = character:FindFirstChild("HumanoidRootPart")
    local position = humanroot.Position

    local key = "key-"..player.userId
    local folder = Instance.new("Folder",player)
    folder.Name = "Vector3Value"

    local cpos = folder.Value
    cpos = position

    local save = DataStore:GetAsync(key)
    if save then
        cpos = save[1]
    else
        local load = {cpos}
        DataStore:SetAsync(key,load)
    end
end)

game.Players.PlayerRemoving:connect(function(player)
    local key = "key-"..player.userId
    local load = {player.Vector3Value:FindFirstChild("cpos")}
    DataStore:SetAsync(key,load)
end)

p.s: I am not that good at data store so for those who think I am way off I am sorry :3