[2020] Ubisoft Connect. Does not run the game :(

Hi

I could run the game before
Until I had to restore Windows with a backup
That game and Steam and Uplay were removed

I installed Steam and uplay again and downloaded the game (about 57 GB)
And when I want to run the game
At Ubisoft Connec
This is a warning
.................................................. .......................
Connection disconnected
The ubisoft service is not currently available. please try again later

............................................
What should I do?
I have no problem connecting to the internet and the Steam program runs easily
But this problem occurs when opening Uplay

Thank you for your help