On oracle suite1 manageRightsGroups fails

2013-09-18 04:23:54,506 ERROR [http-bio-0.0.0.0-8080-exec-38] [com.sun.jersey.spi.container.ContainerResponse] Mapped exception to response: 500 (Internal Server Error)
javax.ws.rs.WebApplicationException: org.nuxeo.ecm.automation.TraceException: 
****** chain ******
Name: operation
Exception: OperationException
Caught error: Failed to invoke operation UserGroup.Suggestion
Caused by: net.sf.json.JSONException: JSONObject["label"] not found.
****** Hierarchy calls ******
	org.nuxeo.ecm.platform.ui.select2.automation.SuggestUserEntries
	at org.nuxeo.ecm.automation.jaxrs.ExceptionHandler.newException(ExceptionHandler.java:56)
	at org.nuxeo.ecm.automation.server.jaxrs.ExecutableResource.doPost(ExecutableResource.java:60)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...
Caused by: net.sf.json.JSONException: JSONObject["label"] not found.
	at net.sf.json.JSONObject.getString(JSONObject.java:2092)
	at org.nuxeo.ecm.platform.ui.select2.automation.SuggestUserEntries.run(SuggestUserEntries.java:169)