Maintenance Backup loads for a long time before rebooting the ATV

My las successful backup seems to date back to May this year. I have not been able to do a backup successfully since. Every time I got in maintenance and hit backup (full), it loads forever and then crashes and restarts the Apple TV. Is there any way I can backup this crap box of mine before updating or it’s a lost cause?

PS: does it actually back up also the Kodi settings/plugins?