I just copied my files on my server, and everything is going well on the frontend... I'm trying to go into the admin site, and there surprise nothing is working. I can login, and then nothing anymore... On any panel I click, I only view the root elements. If I run the admin from my local machine with the connection to the production database and it's OK.

In the logging table I found such things :  I already changed some read/writes permissions on the data and umbraco directories but no help. So any advice is welcome ?

At /umbraco/developer/packages/BrowseRepository.aspx?repoGuid=65194810-1f85-11dd-bd0b-0800200c9a66 (Referred by: http://localhost:1234/umbraco/TreeInit.aspx?app=developer): System.ObjectDisposedException: Cannot write to a closed TextWriter.
   at System.IO.__Error.WriterClosed()
   at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder)
   at System.IO.StreamWriter.Flush()
   at umbraco.cms.businesslogic.packager.Settings.HasFileAccess(Exception& exp)
   at umbraco.presentation.developer.packages.BrowseRepository.Page_Load(Object sender, EventArgs e)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at umbraco.BasePages.BasePage.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)