Cuisinart Easy 21 making weird noise

Hi guys,

I froze way too much the icecream mass before trying to turn the machine on – I did it a few times for a couple of days – and it got stuck by the frozen mass. Now, my machine start doing this noise. It still works properly, making very good icecream just like before.
Should I worry of this noise being the beginning of a bigger problem? Any ideal what happened inside the machine? Is there a way to fix this?

Thank you very much