[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.