I found this KB article when researching the ADMIN_SVI_ADD_DEPLOYMENT_GROUP_FAILED error event.
Not sure if this is related to your situation.
Your error message appears in the View Administrator Events guide here: http://pubs.vmware.com/view-50/index.jsp?topic=/com.vmware.view.integration.doc/view_integration_eventdb.4.5.html
When checked, your error translates to ADMIN_SVI_ADD_DEPLOYMENT_GROUP_FAILED which when I researched turned up that KB article.