Not opening offline project

Hi I just started using GP and I have a new cloud project available offline
image

I tried to open it in offline mode. When I try to open a new project, desktop application shows me the project, doesn’t ask me to sing in (OK, it detects I’m offline) and tries to open the project offline (I suppose) but after several minutes it still shows the opening screen and can never open the project

I’m using GanttProject 3.2.3247 version

Thank you
Martino