im trying to spawn a block (with an other script) and delte it again with this script and it just keeps putting out error codes like the one in the titel

local Debris = game:GetService("Debris")
local nta = "nothing got added yet"

function lte2brickdestroy()
    workspace.lte1buttonscript.ChildAdded:Connect(function(instance)
        instance.Name = nta

        if nta == "lte2brick" then
            Debris:AddItem()
        end
    end)
end


game.Workspace.lead_to_exit1_button.ClickDetector.MouseClick:lte2brickdestroy()