Daily Backup Suddenly Fails

Hello everyone,

The backup jobs have been working fine up until the 12/24/2012. Since then the Operating System Backup Job is unable to complete. I get the following error messages:

Event code: 0x0135003D+0x01350001

Command 'Backing up' has failed.
Additional info:
--------------------
Error code: 61
Module: 309
LineInfo: 4a8728dc8a1c950f
Fields: $module : mms_vs_32308
Message: Command 'Backing up' has failed.
--------------------
Error code: 1
Module: 309
LineInfo: 7564da35b0f1eaf8
Fields: $module : mms_vs_32308
Message: The activity state has been repaired after unexpected failure. The server was probably unavailable.
--------------------

and 1 second later I get this:

Event code: 0x0135003D+0x01330029+0x01350001

Command 'Running backup plan 'OS Backup 9/28/2012 1:13:18 PM'' has failed.
Additional info:
--------------------
Error code: 61
Module: 309
LineInfo: 4a8728dc8a1c950f
Fields: $module : mms_vs_32308
Message: Command 'Running backup plan 'OS Backup 9/28/2012 1:13:18 PM'' has failed.
--------------------
Error code: 41
Module: 307
LineInfo: e6792a5ee190dda7
Fields: $module : agent_protection_addon_vs_32308
Message: ProtectCommand: Failed to execute the command.
--------------------
Error code: 1
Module: 309
LineInfo: 997a6f2085ead068
Fields: $module : mms_vs_32308
Message: TOL: Process 'service_process.exe' has failed.
--------------------

Has anyone run into this issue before? When I logged into the server this morning it did tell me that Windows Updates were installed.

Thanks in advance for all your help