May someone look on my announcement script I made? It didnt work. [closed]

Ive been trying to make this, but it doesn't work.

local serverfolder = workspace:WaitForChild("Server")
local servermessage = serverfolder:WaitForChild("message")
local serverannouncement = serverfolder:WaitForChild("announcement")


servermessage:GetPropertyChangedSignal("Value"):Connect(function()

    if servermessage.Value ~= " " then
    script.Parent.Message.Visible = true
    script.Parent.Message.TextLabel.Text = servermessage.Value

elseif servermessage.Value == " " then
    script.Parent.Message.Visible = false

    end
end)

serverannouncement:GetPropertyChangedSignal("Value"):Connect(function()

        for i,v in pairs(game.Lighting:GetChildren()) do
            if v:IsA("BlurEffect") then
                v:Destroy()
            end
        end

        local blur = game.ReplicatedStorage.Blur:Clone()
        blur.Parent = game.Lighting
        script.Parent.Announcement.sender.Text = serverannouncement.sender.Value
        script.Parent.Announcement.label.Text = serverannouncement.Value
        script.Parent.Announcement.Visible = true
        wait(10)

        for i,v in pairs(game.Lighting:GetChildren()) do
            if v:IsA("BlurEffect") then
                v:Destroy()
            end
        end

        script.Parent.Announcement.Visible = false


end)