HElp me with Quest system fix

[tacit sparrow]

so it work open and close only one time after that i try to touch it it did not appear

local gui = script.Parent
local TweenService = game:GetService("TweenService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local questFrame = gui:WaitForChild("QuestFrame")
local exitButton = questFrame:WaitForChild("ExitButton")
local openQuestEvent = ReplicatedStorage:WaitForChild("OpenQuestEvent")

local blur

local function openGui()
if blur and blur.Parent then
blur:Destroy()
end

blur = Instance.new("Frame")
blur.Name = "BlurOverlay"
blur.Size = UDim2.new(1, 0, 1, 0)
blur.Position = UDim2.new(0, 0, 0, 0)
blur.BackgroundColor3 = Color3.new(0, 0, 0)
blur.BackgroundTransparency = 1
blur.ZIndex = 0
blur.Parent = gui

questFrame.ZIndex = 2
questFrame.Visible = true
questFrame.Size = UDim2.new(0.1, 0, 0.1, 0)

local blurTween = TweenService:Create(blur, TweenInfo.new(0.3), {
    BackgroundTransparency = 0.5
})

local scaleInTween = TweenService:Create(questFrame, TweenInfo.new(0.4, Enum.EasingStyle.Back, Enum.EasingDirection.Out), {
    Size = UDim2.new(0.75, 0, 0.75, 0)
})

blurTween:Play()
scaleInTween:Play()
gui.Enabled = true

end

local function closeGui()
if not blur then return end

local blurOutTween = TweenService:Create(blur, TweenInfo.new(0.3), {
    BackgroundTransparency = 1
})

local scaleOutTween = TweenService:Create(questFrame, TweenInfo.new(0.3, Enum.EasingStyle.Sine, Enum.EasingDirection.In), {
    Size = UDim2.new(0.1, 0, 0.1, 0)
})

blurOutTween:Play()
scaleOutTween:Play()

scaleOutTween.Completed:Connect(function()
    gui.Enabled = false
    questFrame.Visible = false
    if blur and blur.Parent then
        blur:Destroy()
    end
    blur = nil
end)

end

exitButton.MouseButton1Click:Connect(function()
closeGui()
end)

openQuestEvent.OnClientEvent:Connect(function()
openGui()
end)

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local closeQuestEvent = ReplicatedStorage:WaitForChild("CloseQuestEvent")

local function closeGui()

closeQuestEvent:FireServer()

end

exitButton.MouseButton1Click:Connect(function()
closeGui()
end)