XF 1.2 XML error upgrade to 1.4

I get this error and now I can't use my site :(

Server Error
String could not be parsed as XML

  1. SimpleXMLElement->__construct() in XenForo/Model/AdminNavigation.php at line 0
  2. XenForo_Model_AdminNavigation->importAdminNavigationDevelopmentXml() in XenForo/Deferred/ImportMasterData.php at line 16
  3. XenForo_Deferred_ImportMasterData->execute() in XenForo/Deferred/Atomic.php at line 61
  4. XenForo_Deferred_Atomic->execute() in XenForo/Model/Deferred.php at line 252
  5. XenForo_Model_Deferred->runDeferred() in XenForo/Model/Deferred.php at line 378
  6. XenForo_Model_Deferred->_runInternal() in XenForo/Model/Deferred.php at line 312
  7. XenForo_Model_Deferred->runByUniqueKey() in XenForo/Install/Controller/Abstract.php at line 34
  8. XenForo_Install_Controller_Abstract->_manualDeferredRunner() in XenForo/Install/Controller/Upgrade.php at line 216
  9. XenForo_Install_Controller_Upgrade->actionRunDeferred() in XenForo/FrontController.php at line 347
  10. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
  11. XenForo_FrontController->run() in /var/www/vhosts/xxxxx./httpdocs/install/index.php at line 18


XenForo moderator
Staff member
Try uploading the files once again.
If it still occurs, use another FTP program.
I recommend WinSCP.


XenForo moderator
Staff member
The only times I have seen this it has been due to file corruption, either from the original .zip or during the upload.

If you open a ticket and provide FTP and ACP access I can take a look.