How Do I fix Argument 1 Missing or nil? [closed]

First of all I just wan't to say This is the first Time I'm using Remotes, Anyway I'm trying to get this remote to give me hits when Triggered.

If you need more info please reply.

The Remote:

game.ReplicatedStorage.Remotes.AddHit.OnServerEvent:Connect(function()
    local plr = game:GetService("Players").LocalPlayer
    local hits = plr:WaitForChild("Hits")
    hits.Value = hits.Value + 10
end)

Script: (LINE 227 - 229)

--Rescripted by Luckymaxer
bf = game.ReplicatedStorage.Remotes.AddHit
bff = game.ReplicatedStorage.Remotes.AddHitBasic
Tool = script.Parent
Handle = Tool:WaitForChild("Handle")

Players = game:GetService("Players")
Debris = game:GetService("Debris")

Speed = 50
Duration = 1

NozzleOffset = Vector3.new(0, 0.4, -1.1)

Sounds = {
    Fire = Handle:WaitForChild("Fire"),
    Reload = Handle:WaitForChild("Reload"),
    HitFade = Handle:WaitForChild("HitFade")
}

PointLight = Handle:WaitForChild("PointLight")

ServerControl = (Tool:FindFirstChild("ServerControl") or Instance.new("RemoteFunction"))
ServerControl.Name = "ServerControl"
ServerControl.Parent = Tool

ClientControl = (Tool:FindFirstChild("ClientControl") or Instance.new("RemoteFunction"))
ClientControl.Name = "ClientControl"
ClientControl.Parent = Tool

ServerControl.OnServerInvoke = (function(player, Mode, Value, arg)
    if player ~= Player or Humanoid.Health == 0 or not Tool.Enabled then
        return
    end
    if Mode == "Click" and Value then
        Activated(arg)
    end
end)

function InvokeClient(Mode, Value)
    pcall(function()
        ClientControl:InvokeClient(Player, Mode, Value)
    end)
end

function TagHumanoid(humanoid, player)
    local Creator_Tag = Instance.new("ObjectValue")
    Creator_Tag.Name = "creator"
    Creator_Tag.Value = player
    Debris:AddItem(Creator_Tag, 2)
    Creator_Tag.Parent = humanoid
end

function UntagHumanoid(humanoid)
    for i, v in pairs(humanoid:GetChildren()) do
        if v:IsA("ObjectValue") and v.Name == "creator" then
            v:Destroy()
        end
    end
end

function FindCharacterAncestor(Parent)
    if Parent and Parent ~= game:GetService("Workspace") then
        local humanoid = Parent:FindFirstChild("Humanoid")
        if humanoid then
            return Parent, humanoid
        else
            return FindCharacterAncestor(Parent.Parent)
        end
    end
    return nil
end

function GetTransparentsRecursive(Parent, PartsTable)
    local PartsTable = (PartsTable or {})
    for i, v in pairs(Parent:GetChildren()) do
        local TransparencyExists = false
        pcall(function()
            local Transparency = v["Transparency"]
            if Transparency then
                TransparencyExists = true
            end
        end)
        if TransparencyExists then
            table.insert(PartsTable, v)
        end
        GetTransparentsRecursive(v, PartsTable)
    end
    return PartsTable
end

function SelectionBoxify(Object)
    local SelectionBox = Instance.new("SelectionBox")
    SelectionBox.Adornee = Object
    SelectionBox.Color = BrickColor.new("Really red")
    SelectionBox.Parent = Object
    return SelectionBox
end

local function Light(Object)
    local Light = PointLight:Clone()
    Light.Range = (Light.Range + 2)
    Light.Parent = Object
end

function FadeOutObjects(Objects, FadeIncrement)
    repeat
        local LastObject = nil
        for i, v in pairs(Objects) do
            v.Transparency = (v.Transparency + FadeIncrement)
            LastObject = v
        end
        wait()
    until LastObject.Transparency >= 1 or not LastObject
end

function Dematerialize(character, humanoid, FirstPart)
    if not character or not humanoid then
        return
    end

    humanoid.WalkSpeed = 0

    local Parts = {}

    for i, v in pairs(character:GetChildren()) do
        if v:IsA("BasePart") then
            v.Anchored = true
            table.insert(Parts, v)
        elseif v:IsA("LocalScript") or v:IsA("Script") then
            v:Destroy()
        end
    end

    local SelectionBoxes = {}

    local FirstSelectionBox = SelectionBoxify(FirstPart)
    Light(FirstPart)
    wait(0.05)

    for i, v in pairs(Parts) do
        if v ~= FirstPart then
            table.insert(SelectionBoxes, SelectionBoxify(v))
            Light(v)
        end
    end

    local ObjectsWithTransparency = GetTransparentsRecursive(character)
    FadeOutObjects(ObjectsWithTransparency, 0.1)

    wait(0.5)

    character:BreakJoints()
    humanoid.Health = 0

    Debris:AddItem(character, 2)

    local FadeIncrement = 0.05
    Delay(0.2, function()
        FadeOutObjects({FirstSelectionBox}, FadeIncrement)
        if character and character.Parent then
            character:Destroy()
        end
    end)
    FadeOutObjects(SelectionBoxes, FadeIncrement)
end

function Touched(Projectile, Hit)
    if not Hit or not Hit.Parent then
        return
    end
    local character, humanoid = FindCharacterAncestor(Hit)
    if character and humanoid and character ~= Character then
        local ForceFieldExists = false
        for i, v in pairs(character:GetChildren()) do
            if v:IsA("ForceField") then
                ForceFieldExists = true
            end
        end
        if not ForceFieldExists then
            if Projectile then
                local HitFadeSound = Projectile:FindFirstChild(Sounds.HitFade.Name)
                local torso = humanoid.Torso
                if HitFadeSound and torso then
                    HitFadeSound.Parent = torso
                    HitFadeSound:Play()
                end
            end
            Dematerialize(character, humanoid, Hit)
        end
        if Projectile and Projectile.Parent then
            Projectile:Destroy()
        end
    end
end

function Equipped()
    Character = Tool.Parent
    Player = Players:GetPlayerFromCharacter(Character)
    Humanoid = Character:FindFirstChild("Humanoid")
    if not Player or not Humanoid or Humanoid.Health == 0 then
        return
    end
end

function Activated(target)
    if Tool.Enabled and Humanoid.Health > 0 then
        Tool.Enabled = false

        InvokeClient("PlaySound", Sounds.Fire)

        local HandleCFrame = Handle.CFrame
        local FiringPoint = HandleCFrame.p + HandleCFrame:vectorToWorldSpace(NozzleOffset)
        local ShotCFrame = CFrame.new(FiringPoint, target)

        local LaserShotClone = BaseShot:Clone()
        LaserShotClone.CFrame = ShotCFrame + (ShotCFrame.lookVector * (BaseShot.Size.Z / 2))
        local BodyVelocity = Instance.new("BodyVelocity")
        BodyVelocity.velocity = ShotCFrame.lookVector * Speed
        BodyVelocity.Parent = LaserShotClone
        LaserShotClone.Touched:connect(function(Hit)
            if not Hit or not Hit.Parent then
                return
            end
            Touched(LaserShotClone, Hit)
            if Hit.Parent:FindFirstChild("Humanoid") then
            bf:FireClient()
            else
            bff:FireClient()
            end
        end)
        Debris:AddItem(LaserShotClone, Duration)
        LaserShotClone.Parent = game:GetService("Workspace")
        wait(0.6) -- FireSound length

        InvokeClient("PlaySound", Sounds.Reload)

        wait(0.75) -- ReloadSound length

        Tool.Enabled = true
    end
end

function Unequipped()

end

BaseShot = Instance.new("Part")
BaseShot.Name = "Effect"
BaseShot.BrickColor = BrickColor.new("Really red")
BaseShot.Material = Enum.Material.Plastic
BaseShot.Shape = Enum.PartType.Block
BaseShot.TopSurface = Enum.SurfaceType.Smooth
BaseShot.BottomSurface = Enum.SurfaceType.Smooth
BaseShot.FormFactor = Enum.FormFactor.Custom
BaseShot.Size = Vector3.new(0.2, 0.2, 3)
BaseShot.CanCollide = false
BaseShot.Locked = true
SelectionBoxify(BaseShot)
Light(BaseShot)
BaseShotSound = Sounds.HitFade:Clone()
BaseShotSound.Parent = BaseShot

Tool.Equipped:connect(Equipped)
Tool.Unequipped:connect(Unequipped)

The Error: Argument 1 missing or nil