Diego,
We really need to see what is happening in your WSSCmdletsWrapper*.errlog file at the time of the catalog failure. The catalog job by default will run 3 hours after your first full backup of the farm each day. It looks like the error occurred
at 19:56. My guess is your backup is happening at 17:00 or maybe 16:30.
So, go to the WFE server where SharePoint is running and navigate to the DPM\Temp directory and wait for this time. When it happens, open the WSSCmdletsWrapperCurr.errlog file. At the bottom, you should see something indicating errors (Warnings
or Critical lines).
Post those here so we can see more details on the exact error.
Chris
Thanks, Chris Butcher - MSFT This posting is provided "AS IS" with no warranties, and confers no rights