ERR - Client for NFS service is either not installed or not running.

Hello guys, i'm trying to make a GRT backup of AD, but is bringing me the following message in job details:

07/17/2014 10:37:00 - Info nbjm (pid=12272) starting backup job (jobid=3178548) for client sdb-win-dc-1.oi.infra, policy AD-SDB-Oi-INFRA-1, schedule AD-Full

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