HI Tony, thanks for all the support.
at the end, after many trials an errors I could connect to Qground control but this one give some little errors. Never mind as I shift during the test to Cockpit and this software works very well.
I had to change the path to connect. but it’s ok.
Cockpit also works via the webpage.
In conclusion to this I have no idea on how everything has been completely reset.
Once more thanks for your help.