Wiper mount loose or broken?

Hi,

I need your help! My wipers are making huge noise. The passenger wiper is hitting the bonet while working.
In the video below, we can see that the mount is loose.

Do you know a quick fix for this? Otherwise, is it a part I can order or am I good for a new wiper motor?

The wipers are both functioning fine, the "only" issue is the noise... My car is a 2013 A5 convertible.

Many thanks for your help!!