GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files

Describe the bug
After the manually creating another (I try daily) snapshot, the last line spills some error I don't understand. So, it could be superfluous, or it could be serious, or something in between.

To Reproduce
Steps to reproduce the behavior:

1. as root I launch timeshift-gtk
2. Click on Create (there are already 17 snapshots)
3. Error message -> look at the very last line of the output:

App config loaded: /etc/timeshift/timeshift.json
Mounted '/dev/sdc1' at '/run/timeshift/76985/backup'

------------------------------------------------------------------------------
Creating new snapshot...(RSYNC)
Saving to device: /dev/sdc1, mounted at path: /run/timeshift/76985/backup
Linking from snapshot: 2026-01-08_14-42-22
Syncing files with rsync...
Created control file: /run/timeshift/76985/backup/timeshift/snapshots/2026-01-11_03-34-14/info.json
RSYNC Snapshot saved successfully (157s)
Tagged snapshot '2026-01-11_03-34-14': ondemand
------------------------------------------------------------------------------
GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files

Expected behavior
no error

Screenshots
screenshot not applicable to this issue

System:

• Linux Distribution Name and Version: LMDE 7 Gigi
• Desktop: Cinnamon
• Timeshift Version: 25.12.4
• Timeshift Mode rsync
• Display Server: X11

Personal note:
Before yesterday's system update, there was no error. So, it is related.

Reproduce the report by launching timeshift-gtk as root and creating an rsync snapshot, then inspect the final DBus notification error. The issue mentions no source files or tests; done means determining whether the missing org.freedesktop.Notifications service is an actual Timeshift failure and resolving or documenting the reported behavior.