Accessibility Error

Hi – I am running an accessibility checker plugin and am getting this error on all my sites using your plugin “iFrame Missing Title.” It indicates this is where the title is missing:
<iframe src=”https://www.googletagmanager.com/ns.html?id=GTM-NQKCBHH&#8221; height=”0″ width=”0″ style=”display:none;visibility:hidden” aria-hidden=”true”></iframe>

Is this something you guys can add in an update or does it have nothing to do with your plugin? Or is there some way I can add this myself?

Thanks for any advice/input!