Why doesn't the part trigger when player has touched it?

local model = game.Workspace.Part

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

model.Touched:Connect(function(hit)
    if plr:GetRankInGroup(3611738) == 10 then
        while wait(5) do
            plr.leaderstats["Points"].Value = plr.leaderstats["Points"].Value + 1
        end
end
end)
end)