The %1 ConfigMgr client application on the local computer did not respond to Site Backup's stop request.%12 Possible cause: ...

%11The %1 ConfigMgr client application on the local computer did not respond to Site Backup's stop request.%12

Possible cause: %1 is not a ConfigMgr client application and so cannot respond to a "close" event.
Solution: Stop this application manually or as a standard executable.

Possible cause: %1 was not running.
Solution: Remove the "clientapp %1" definition from the backup control file.%0