How can i fix my only team healing script because it does not work help?

So i was experiment to make team only healing script, but turns out it didn't work. And it doesn't show any error, so i was wondering if i did anything wrong. (here's the code) while true do

for i, v in pairs(game.Teams["Vampire"]:GetPlayers()) do

local v = part.Parent:findFirstChild("Humanoid")

if v~=nil then

v.Health = v.Health + 2

end

wait(1)

end

for 1, you are not looping it, the for only goes over every player once and 2, im not sure you can change v without it returning the original v later

local team = "Vampires"
local health = 2
local delay = 1
while true do
    for k,v in pairs(game.Players:GetPlayers()) do
	    if v.Team = game.Teams[team] then
		    local h = v.Character:FindFirstChildOfClass("Humanoid")
		    if not h then
			    return nil
			end
			h.Health = h.Health + health
		end
	end
	wait(delay)
end