Error getting file backups

Does terminal client support showing files that were backed up?

Executed

urbackupclientctl browse

in the terminal, got

Error getting file backups

Might be related to this thread I registered before, not entirely sure.

Server OS: CentOS 7, version 2.1.14
Client OS: CentOS 6, version 2.1.3.0

Is this an upgraded client?
If yes, does it have account/group names with upper case letters?

If it is upgraded, could you delete the contents of /usr/local/var/urbackup/tokens, then run a full file backup and then try again?

By upgraded do you mean did I freshly install it or did I upgrade from a
previous version? I think I upgraded it some time ago but I’m not sure
when. I’ll check account names on the machine in the morning but AFAIK
it’s all lowercase.

Checked my server:

No names or groups that contain upper case
Deleted the contents of that folder, ran the backup, zero effect.

Anything else I could try?