Won't launch anymore....

Hi!

I think it's the first time this year I have to use C1. It won't launch...

The screen for the tryout or "enter the license key" appear. But whatever I choose, after my bowser connect to C1 website, the program won't launch.... I try to install the latest version, I try te reboot... Nothing works.

I have bought my perpetual license in 2021 and it was going flawless until now.

Any idea?