I get the login screen, where I fill in the details, next, it redirects to '/cgi-bin/meteohub.cgi' , but that's it.

Already tried to reboot.
is there a way to see what's wrong ? The system itself is working, it sends his data to the different weather services.
Or is there a way to update the environlment from commandline, or backup from commandline.
Then I can copy this info, and re-install the complete system.
Erwin