Failure communicating with remote server

[daninus14]

Hi Guys,

Could you please help with the following error?

Zimbra Desktop is 1.0.4 (build 1833)
Windows 7 Operating System

Zimbra is downloading new email, but its not downloading any email from other folders besides the inbox. It has also not finished downloading the old inbox emails.

Thank you for your help!

Failure communicating with remote server. Please try again later.

Debug message: Request already pending

Exception:

com.zimbra.common.service.ServiceException: system failure: Synchronization of folder '/TA CS 1316' failed
ExceptionId:mid=2:1283881600267:d9116c9840693d85
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.datasource.ImapSync.syncFailed(ImapS ync.java:298)
at com.zimbra.cs.datasource.ImapSync.syncMessages(Ima pSync.java:260)
at com.zimbra.cs.datasource.ImapSync.syncFolders(Imap Sync.java:195)
at com.zimbra.cs.datasource.ImapSync.importData(ImapS ync.java:152)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:88)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:157)
at com.zimbra.cs.mailbox.LocalMailbox.importData(Loca lMailbox.java:417)
at com.zimbra.cs.mailbox.LocalMailbox.syncAllLocalDat aSources(LocalMailbox.java:389)
at com.zimbra.cs.mailbox.LocalMailbox.sync(LocalMailb ox.java:431)
at com.zimbra.cs.mailbox.LocalMailbox.syncOnTimer(Loc alMailbox.java:361)
at com.zimbra.cs.mailbox.DesktopMailbox$1.run(Desktop Mailbox.java:437)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Request already pending
at com.zimbra.cs.mailclient.imap.ImapConnection.sendR equest(ImapConnection.java:462)
at com.zimbra.cs.mailclient.imap.ImapRequest.send(Ima pRequest.java:77)
at com.zimbra.cs.mailclient.imap.ImapRequest.sendChec kStatus(ImapRequest.java:81)
at com.zimbra.cs.mailclient.imap.ImapConnection.doSel ectOrExamine(ImapConnection.java:187)
at com.zimbra.cs.mailclient.imap.ImapConnection.selec t(ImapConnection.java:174)
at com.zimbra.cs.datasource.RemoteFolder.select(Remot eFolder.java:236)
at com.zimbra.cs.datasource.ImapFolderSync.checkUidVa lidity(ImapFolderSync.java:724)
at com.zimbra.cs.datasource.ImapFolderSync.syncMessag es(ImapFolderSync.java:205)
at com.zimbra.cs.datasource.ImapSync.syncMessages(Ima pSync.java:257)
... 11 more