invalid argument #2(Vector3 expected, got nil). How do I fix this? Error at line 31

So, I tried to make a lightning superpower script, and somehow, I got it wrong:

wait(1)

---- Services ----

local ReplicatedStorage = game:GetService("ReplicatedStorage")



---- Variables ----

local Remote = ReplicatedStorage:WaitForChild("ZapEvent")



local bolt = Instance.new("Part")
bolt.Size = Vector3.new(.3,.3,.3)
bolt.BrickColor = BrickColor.new("Electric blue")
bolt.CanCollide = false
bolt.Anchored = true
bolt.Material = "Neon"




local function shootElectrode(from,too)
    local lastPos = from
    local step = 2
    local off = 2
    local range = 100

    local distance = (from-too).magnitude <-- Error here--

    if distance > range then distance = range end
    for i = 0,distance, step do
        local from = lastPos

        local offset = Vector3.new(
            math.random(-off,off),
            math.random(-off,off),
            math.random(-off,off)
            )/10

        local too = from +- (from-too).unit * step + offset

        local p = bolt:Clone()

        local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
        DebrisFolder.Name = "DebrisFolder"
        p.Parent = DebrisFolder
        p.Size = Vector3.new(p.Size.x,p.Size.y,(from-too).magnitude)
        p.CFrame = CFrame.new(from:Lerp(too,0.5),too)

        game.Debris:AddItem(p,0.1)
        lastPos = too

    end
end


local function continueScale(Part)
    local TweenService = game:GetService("TweenService")
    local TweenInform = TweenInfo.new(
        .2,
        Enum.EasingStyle.Linear,
        Enum.EasingDirection.Out,
        0,
        false,
        0
    )

    local Properties = {
        Size = Vector3.new(2.901,2.772,35)
    }

    local Tween = TweenService:Create(Part,TweenInform,Properties)
    Tween:Play()
end




Remote.OnServerEvent:Connect(function(Player,Aim,MousePos)

    local Character = Player.Character
    local RootPart = Character:WaitForChild("HumanoidRootPart")
    local RightHand = Character:WaitForChild("RightHand")
    local Humanoid = Character:WaitForChild("Humanoid")

    if Aim then
        local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
        DebrisFolder.Name = "DebrisFolder"
        local Animation = Instance.new("Animation")
        Animation.AnimationId = "rbxassetid://6425400204"
        local LoadAnimation = Character.Humanoid:LoadAnimation(Animation)
        LoadAnimation:Play()


        local BodPos = Instance.new("BodyPosition")
        BodPos.MaxForce = Vector3.new(5000000,5000000,5000000)
        BodPos.P = 50000
        BodPos.Position = RootPart.Position
        BodPos.Parent = RootPart

        spawn(function()
            wait(3)
            BodPos:Destroy()
        end)

        local YCFrame = RootPart.Position.Y - Humanoid.HipHeight
        local CharParts = Character:GetChildren()

        math.randomseed(tick())
        spawn(function()
            for i = 1,#CharParts do
                local Current = CharParts[i]
                if Current.ClassName == "Part" or Current.ClassName == "MashPart" then
                    shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))
                    shootElectrode(Vector3.new(RootPart.Position.X - math.random(-5,5), YCFrame, RootPart.Position.Z - math.random(-5,5), Current.Position))
                    wait()

                 end                    
             end        
         end)



    else

        local DebrisFolder = workspace:FindFirstChild("DebrisFolder") or Instance.new("Folder",workspace)
        DebrisFolder.Name = "DebrisFolder"
        local HitBox = Instance.new("Part")
        HitBox.Anchored = false
        HitBox.Transparency = 1
        HitBox.CanCollide = false
        HitBox.BrickColor = BrickColor.new("Really black")
        HitBox.Size = Vector3.new(5,5,5)
        HitBox.Parent = DebrisFolder






        spawn(function()
            local repeatnum = 22
            for i = 1,repeatnum do
                shootElectrode(RightHand.Position,MousePos.Position)
                shootElectrode(RightHand.Position,MousePos.Position)
                wait()      
        end
HitBox:Destroy()    
        end)



        local Mag = (RightHand.Position - MousePos.Position).magnitude
        if Mag > 100 then
            Mag = 100
        end     


HitBox.Size = Vector3.new(5,5,Mag)  
HitBox.Position = RightHand.Position    
HitBox.CFrame = CFrame.new(RightHand.Position,MousePos.Position)    
HitBox.CFrame = HitBox.CFrame * CFrame.new(0,0,-Mag/2)

        spawn(function()
            local Sound = Instance.new("Sound")
            Sound.SoundId = "rbxassetid://34419186924"
            Sound.Parent = RootPart
            Sound.PlaybackSpeed = .8
            Sound.RollOffMaxDistance = 300
            Sound.Volume = 7
            Sound:Play()

            wait(5)
            Sound:Destroy()
        end)



        local Hitppl = {}
        local beenHit


        wait(.05)
        HitBox.Touched:Connect(function(hit)
            if not hit.Parent:FindFirstChild("Humanoid") then return end
            if hit.Parent.Name ~= Character.Name then

                local NewCharacter = hit.Parent
                if Hitppl[Player.Name] then return end
                Hitppl[Character.Name] = true

local Animation = Instance.new("Animation")
Animation.AnimationId = "rbxassetid://6429800435"
local LoadAnimation = NewCharacter:FindFirstChild("Humanoid"):LoadAnimation(Animation)
LoadAnimation:Play()


                local BodPos = Instance.new("BodyPosition")
                BodPos.MaxForce = Vector3.new(5000000,5000000,5000000)
                BodPos.P = 50000
                BodPos.Position = NewCharacter:FindFirstChild("HumanoidRootPart").Position
                BodPos.Parent = NewCharacter:FindFirstChild("HumanoidRootPart")
                NewCharacter:FindFirstChild("Humanoid"):TakeDamage(30)              

                wait(.1)

                if hit.Parent:FindFirstChild("Humanoid").Health <= 0 then
                    game.Debris:AddItem(BodPos,.1)
                else
                    game.Debris:AddItem(BodPos,2)
                end




    end 
end)        









    end

end)

put ur code into a block, blue Lua icon in the editor