Checking for an update... What's wrong with my script?

Okay, so I have written some code, and when I update the plugin, a gui shows up (if the plugin is opened) and tells the player to update the plugin via the Plugin Manager. However, it started working at first, and then it just stopped. Can you tell me what's wrong? Did I code this right?

If there are any sources I can look at, I'd appreciate if you give me the links.

Thanks...

Code:

local AssetId = 142776964

----

local Info = game:GetService("MarketplaceService"):GetProductInfo(AssetId)

while true do
	
	wait()
	
	local NewInfo = game:GetService("MarketplaceService"):GetProductInfo(AssetId)
		if NewInfo["Updated"] ~= Info["Updated"] then
			if NewInfo["Description"] == Info["Description"] and NewInfo["Name"] == Info["Name"] or NewInfo["AssetId"] ~= game.PlaceId then
				
			script.Parent.Main.Update.Visible = true
			script.Parent.Main.Tabs.InfoButton.Visible = false
			script.Parent.Main.InfoPage.Visible = false
			
			else
				
				Info = NewInfo
			
		end	
	end
end