"Can't read '/home/riccardo/.config/gmusicbrowser/gmbrc', aborting..."
There is a problem with this file, maybe it doesn't have the right permissions, it needs read and write permissions.
Check what "ls -l /home/riccardo/.config/gmusicbrowser/gmbrc" says.
"Can't read '/home/ riccardo/ .config/ gmusicbrowser/ gmbrc', aborting..." .config/ gmusicbrowser/ gmbrc" says.
There is a problem with this file, maybe it doesn't have the right permissions, it needs read and write permissions.
Check what "ls -l /home/riccardo/