How to change Value with remotevent? [closed]

[localScript]

local player = game.Players.LocalPlayer
local UserInputType = game:GetService("UserInputService")
local Damage = script:WaitForChild("Damage")
local ComboCount = script:WaitForChild("ComboCount")
local IsCreated = script:WaitForChild("IsCreated")
local IsClicked = script:WaitForChild("IsClicked")





function FightControlls(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 and IsClicked.Value == false then
        ComboCount.Value = ComboCount.Value + 1
        IsClicked.Value = true

        local HitDetector = player.Character:FindFirstChild("HitDetection")
        if not HitDetector then
            IsCreated.Value = true
            print("HitDetector not created")
        elseif HitDetector then
            IsCreated.Value = true
            print("hitdetector is created")
        end

        game.ReplicatedStorage.FightEvent:FireServer(Damage,ComboCount,IsClicked,IsCreated)
    end
end


UserInputType.InputBegan:Connect(FightControlls)

[ServerScript]

game.ReplicatedStorage.FightEvent.OnServerEvent:Connect(function(player,Damage,
ComboCount,IsClicked,IsCreated)


    if IsCreated.Value == true then
        DetectionModel = game.ReplicatedStorage.HitDetection:Clone()
        DetectionModel.Parent = player.Character.Head

        local Weld = Instance.new("Weld")
        Weld.Part0 = DetectionModel.MainHolder
        Weld.Part1 = player.Character.Head
        Weld.Parent = player.Character.Head
    end

    DetectionModel.Detector.Touched:Connect(function(hit)
        local humanoid = hit.Parent:FindFirstChild("Humanoid")
        local Defense = hit.Parent:FindFirstChild("Defense")

        local punched = humanoid:LoadAnimation(script.Fighting.Punched0)
        print(IsClicked.Value)
        if humanoid and IsClicked.Value == true and not Defense then

            punched:Play()
            humanoid:TakeDamage(Damage.Value)

            punched:Stop()
            IsClicked.Value = false
            print(IsClicked.Value)

        end

    end)

end)

**** OUTPUT

15:17:50.023 - ScriptRoom.rbxl was auto-saved HitDetector not created 15:18:07.082 - ServerScriptService.CombatSystemV3:4: attempt to index local 'IsCreated' (a nil value) 15:18:07.084 - Stack Begin 15:18:07.085 - Script 'ServerScriptService.CombatSystemV3', Line 4 15:18:07.086 - Stack End