Event ID - 5051

Event Id5051
SourceWindows SharePoint Services 3
DescriptionInformation Rights Management (IRM): There was a problem while trying to acquire a machine certificate from the local Rights Management Services (RMS) lockbox.
The RMS server returned an error.
In order to execute RMS transactions on a machine, that machine will need a unique certificate. This certificate is stored locally in the RMS lockbox.
Additional Data
Error value: %1
Event InformationAccording to Microsoft :
Cause :
This event is logged when there was a problem while trying to acquire a machine certificate from the local Rights Management Services (RMS) lockbox.
Resolution :
Delete stored licenses
The stored licenses might be corrupt. You must delete the current licenses. They will be automatically re-created. You must be a member of the SharePoint Administrators group to stop and start the Windows SharePoint Services 3.0 Web application. You must have write access to the license directories to delete these directories.
To delete stored licenses
Stop the Windows SharePoint Services 3.0 Web application by running the following command at the command prompt.
iisreset /stop
2.On the Windows SharePoint Services 3.0 front-end Web server, navigate to the %allusersprofile%\Application Data\Microsoft\DRM\Server\ folder.
3.Delete all folders named after the Windows SharePoint Services 3.0 application pool identity account. The application pool identity is the user account that Windows SharePoint Services 3.0 is running under.
4.Restart the Windows SharePoint Services 3.0 process by running the following command at the command prompt.
iisreset /start
Verify :
To verify that this problem is resolved, users should download and then re-upload a file from a rights-managed document library. If successful, then the problem is resolved.
To activate Information Rights Management on a document library, navigate to that library’s Document Library Settings page. ClickInformation Rights Management and selectRestrict permission to documents in this library on download.
Reference LinksEvent ID 5051 from Source Windows SharePoint Services 3

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