[close] Medkit code not working, after putting required script in serverstorage?

So, I'm using the default Roblox Medkit (the one seen in the template) and I get the following error: Players.relatlves.Backpack.Medkit.MedkitScript:30: attempt to index local 'character' (a nil value) I've tried putting the ROBLOX_HumanoidList in ServerStorage incase the code that puts the HumanoidList in ServerStorage doesn't work anymore. Code:

local tool = script.Parent
if not game.ServerStorage:FindFirstChild("ROBLOX_HumanoidList") then
	tool.ROBLOX_HumanoidList:Clone().Parent = game.ServerStorage
end
local HumanoidList = require(game.ServerStorage.ROBLOX_HumanoidList)
local lastHealed = os.time()

local configTable = tool.Configurations
local configs = {}
local function loadConfig(configName, defaultValue)
	if configTable:FindFirstChild(configName) then
		configs[configName] = configTable:FindFirstChild(configName).Value
	else
		configs[configName] = defaultValue
	end
end

loadConfig("HealAmount", 20)
loadConfig("HealDistance", 10)
loadConfig("HealCooldown", 2)

tool.Activated:Connect(function()
	local now = os.time()
	if now - lastHealed >= configs["HealCooldown"] then
		lastHealed = now
		-- Find all nearby humanoids and heal them if in range
		local humanoids = HumanoidList:GetCurrent()
		for _, humanoid in pairs(humanoids) do
			local character = humanoid.Parent
			if character:FindFirstChild("HumanoidRootPart") then
				local distance = (tool.Handle.Position - character:FindFirstChild("HumanoidRootPart").Position).magnitude
				if distance < configs["HealDistance"] then
					humanoid.Health = humanoid.Health + configs["HealAmount"]
					local healSmokeThread = coroutine.create(function()
						local smoke = Instance.new("Smoke", character:FindFirstChild("HumanoidRootPart"))
						smoke.Color = Color3.new(0,1,0)
						smoke.Opacity = 0.3
						wait(2)
						smoke:Destroy()
					end)
					coroutine.resume(healSmokeThread)
				end
			end
		end
	end
end)

HumanoidList Code:

local humanoidList = {}
local storage = {}

function humanoidList:GetCurrent()
	return storage
end

local function findHumanoids(object, list)
	if object then
		if object:IsA("Humanoid") then
			table.insert(list, object)
		end

		for _, child in pairs(object:GetChildren()) do
			local childList = findHumanoids(child, list)
		end
	end
end

local updateThread = coroutine.create(function()
	while true do
		storage = {}
		findHumanoids(game.Workspace, storage)
		wait(3)
	end
end)

coroutine.resume(updateThread)

return humanoidList

Edit: Yes, I did try editing the code, it just made it worse.