Article ID: 116310, created on Mar 23, 2014, last review on May 10, 2014

  • Applies to:
  • Plesk 11.5 for Windows


After upgrading to version 11.5, an attempt to open File Manager for domains that existed before the upgrade shows this error:

Internal error: U: (1326) L (Error code 1)
Message U: (1326) L (Error code 1)
File Agent.php
Line 212
Type PleskUtilException

Error in Windows Event Viewer:

Unable to thread impersonate run without profile: U: (1326) L
Execute file name: C:\Program Files (x86)\Parallels\Plesk\admin\bin\plesksrv.exe


The Plesk accounts cache is not in sync with the actual accounts on the system.


Synchronize the system accounts cache using the following command:

"%plesk_cli%\repair.exe" --synchronize-impersonation-storage

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