Problem with PGP Desktop

Good afternoon, I need help with the next problem:

Microsoft Outlook2013,send amailand appears the following error

Subject:PGPlocked:TimelineViewsBranchesDirectors

Themessage did not reachsomeor all of theintended recipients.

Subject:SchedulevisitsDirectorsBranches
Posted:06/08/20153:19:00p.m.

Errormessage delivery.Check thePGPfor details.

The original messageis embeddedin thenon-delivery report.Click Submitagain toview the original textand have theopportunity toforward the message.Ifthe problem persists andevenreceive anon-delivery report, contact theadministratorfor details.

thanks

regards