Suddenly I am facing the same problem. All the service are working, but in browser shows page refresh option. Metronome is not logging in too. I am only getting access to the ssh.
The nginx do not show any recent error related to this. I tried to run the Debain installation script but it gives error while installation.
======== Installation failed ========
Rolling back have to be done manually !
Check your legacy configuration files => '/etc/yunohost/.legacy'
Check install logs => '/var/log/yunohost.log' and '/var/log/yunohost.error'
How can I run the script and know the issue behind this?