Deathadder elite : screws running around inside

Hi all, strange problem : I've plugged in my mouse, a deathadder elite, like every other day, when I heard a strange noise coming from inside the mouse. There was something broken and loose running around. So I removed the top of the mouse and after jiggling it a little, I've recovered 2 screws and little pieces of broken plastic. I don't know how or when it happened but it did. Any idea what to do with it ? The mouse is functioning normally and I don't what to open it further and risk to break it if I don't need to. I'm joining a photo of it all. Any recommandation ? Thx