[BackupPC-users] BackupPC V4.4.0-3 won't start after restore

[<Mat...@gm...>]

Hello,

I destroyed my system (Debian Bullseye) and restored it from backup. During this the UID of backuppc
has been changed.
I "chown -R backuppc:backuppc" all files in /var/lib/backuppc, /usr/share/backuppc/lib,
/usr/share/backuppc/bin and /etc/backuppc to backuppc:backuppc.

But /etc/backuppc/pc is still owned by root:root.
ls -l /usr/share/backuppc/bin/BackupPC
-rwxr-xr-x 1 backuppc backuppc 89034 12. Apr 2021  BackupPC

service backuppc startservice backuppc status
● backuppc.service - BackupPC server
     Loaded: loaded (/lib/systemd/system/backuppc.service; enabled; vendor preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Mon 2026-03-09 18:13:31 CET; 283ms
ago
    Process: 42138 ExecStart=/usr/share/backuppc/bin/BackupPC (code=exited, status=13)
   Main PID: 42138 (code=exited, status=13)
        CPU: 72ms

What is going wrong? How to find the root case?

Thanks in advance
Matthias