why is there an attempt to index nil with 'Name' error?

t = {}

script.Parent.Parent.Activated:Connect(function(g)
    local t = game.Players:FindFirstChild(g.Name)
    t.leaderstats.Thirst.Value += 4
end)

i searched on the first page of google and i couldnt solve it. some solutions led me to another error "argument 1 missing or nil"

t = {}

script.Parent.Parent.Activated:Connect(function(g)
    local t = game.Players:FindFirstChild(g)
    t.leaderstats.Thirst.Value += 4
end)

Im trying to make a water bottle and when it's activated it increases the thirst by 4 on the leaderboard

local DataStore = game:GetService("DataStoreService")

local ds = DataStore:GetDataStore("PointsSaveSystem")
local db = DataStore:GetDataStore("ThirstSaveSystem")
local df= DataStore:GetDataStore("Food")

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

    local leader = Instance.new("Folder",player)

    leader.Name = "leaderstats"

    local Points = Instance.new("IntValue",leader)

    Points.Name = "Bucks"

    Points.Value = ds:GetAsync(player.UserId) or 30

    ds:SetAsync(player.UserId, Points.Value)
    -------------------------------------------------------
    local Thirst = Instance.new("IntValue",leader)

    Thirst.Name = "Thirst"

    Thirst.Value = db:GetAsync(player.UserId) or 7

    db:SetAsync(player.UserId, Thirst.Value)
---------------------------------------------
    local Food = Instance.new("IntValue",leader)

    Food.Name = "Food"

    Food.Value = df:GetAsync(player.UserId) or 10

    df:SetAsync(player.UserId, Food.Value)



end)

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

    ds:SetAsync(player.UserId, player.leaderstats.Points.Value)
    db:SetAsync(player.UserId, player.leaderstats.Points.Value)
    df:SetAsync(player.UserId, player.leaderstats.Points.Value)

end)

(code of the datastores and leaderboard)