CRITICAL: Service app.service state=failed substate=failed restarts=12

Service state:
app.service - Example application
   Loaded: loaded (/etc/systemd/system/app.service; enabled)
   Active: failed (Result: exit-code)

Systemd properties:
Id=app.service
ActiveState=failed
SubState=failed
Result=exit-code
NRestarts=12

Recent start/stop/failure log lines since 1 hour ago:
May 11 09:05:01 host systemd[1]: app.service: Main process exited, status=1/FAILURE
May 11 09:05:01 host systemd[1]: app.service: Failed with result 'exit-code'.

Evidence:
Thresholds: warning=3 restarts critical=10 restarts since="1 hour ago"

Recommended next steps:
- Inspect the unit file and drop-in overrides
- Review application logs around the restart timestamps
- Check dependencies such as network, storage, database, or secrets
- Verify recent configuration or package changes
- Do not restart blindly; attach this output to the incident ticket