Problem after upgrade to 3.1

[kibo]

Hello All

I recently have upgraded to 3.1. In Admin pannel, when I try to edit any users, it gives me following error message. Any ideas?

Message: mountpoint loop detected
com.zimbra.cs.service.ServiceException: mountpoint loop detected
at com.zimbra.cs.service.ServiceException.TOO_MANY_HO PS(ServiceException.java:186)
at com.zimbra.soap.ZimbraContext.<init>(ZimbraContext .java:145)
at com.zimbra.soap.DocumentHandler.proxyRequest(Docum entHandler.java:286)
at com.zimbra.soap.DocumentHandler.proxyRequest(Docum entHandler.java:280)
at com.zimbra.cs.service.admin.AdminDocumentHandler.p roxyIfNecessary(AdminDocumentHandler.java:72)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:252)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:163)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:84)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:228)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:709)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:154)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:802)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:107)
at org.apache.catalina.valves.AccessLogValve.invoke(A ccessLogValve.java:541)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.processConnection(Http11BaseProt ocol.java:667)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

Error code: service.TOO_MANY_HOPS
Method: ZmCsfeCommand.prototype.invoke
Details:soap:Sender

Regards

[kibo]

Just a note that I rebooted the server and it is now fine. But I didn't understand the source of the problem.