"Not available N" Login

I am trying to reinstall Sketchup Pro 2020 on Mac Mojave (10.14).
I used to work on an old version of Sketchup make 2017, but it isn’t supporting plugins and extensions anymore, which I really do need now.
When I download Sketchup Pro 2020 (or even 2021) and log in my Trimble account, I access a welcome page where my username mentions “Not available N”. No actions to start to use sketchup seems possible. (please see image).
Could someone please let me know how to deal with this and start the application?
Thank you very much !