I am trying to make an item scanner, Why isn't my script running as it should be?

print("You have sucessfully loaded bxluga's item finder.  Say id/(id) to start scanning. (without the ()'s)")



local objid = 123
game:GetService("Players").PlayerAdded:connect(function(p)
p.Chatted:connect(function(c)
if c:sub(1,3):lower() == "id/" then
objid = c:sub(4)
print("The item id has been sucessfully changed.")

end
end)
end)

local objid = 123
local framenumber = 1
 
local service = game:GetService("MarketplaceService")
 
local co = coroutine.create(function()
        while true do
                for i = 1,15 do
                        local num = objid + framenumber
                        local obj = service:GetProductInfo(num)
                        if obj.Creator ~= nil then
                                if obj.Creator.Name == "ROBLOX" then
                                        print("Item found! Name: "..obj.Name.." ID: "..num.."")
                                        script.Parent.Sound:play()
                                end
                        end
                        script.Parent.Name = "Object Checked: "..num..""
                        framenumber = framenumber + 1
                end
        end
end)
 
coroutine.resume(co)