Article ID: 116914, created on Aug 24, 2013, last review on Aug 17, 2016

  • Applies to:
  • Plesk 12.0 for Linux
  • Plesk 12.0 for Windows
  • Plesk 11.0 for Windows
  • Plesk 11.5 for Windows
  • Plesk 10.4 for Windows

For Linux version of KB see this article.


Plesk which runs under Windows OS shows the following error when upon logging in:

ERROR: Session_Exception: Unable to set up default locale: default locale does not exist or undefined. (Session.php:113)


The most possible reason is absent locale or locales folders in:

C:\Program Files (x86)\Parallels\Plesk\admin\plib\Locale


  1. Make sure that Plesk Administrator user is a member of Administrators security group. If it is not, add it to the group and restart Plesk Control Panel service.

  2. Make sure that folders with name locale exist:

    C:\Program Files (x86)\Parallels\Plesk\admin\plib>dir *local*
    Directory of C:\Program Files (x86)\Parallels\Plesk\admin\plib
    16/07/2013  21:29    <DIR>          Locale
    15/07/2013  13:05             3,663 LocaleDebug.php
    13/06/2013  19:31    <DIR>          locales
  3. If folder is absent, extract 'locale' folder from plesk.msi (in C:\ParallelsInstaller\parallels\PANEL-WIN_<plesk_version>\dist-msi-Microsoft-2003-i386) to some temporary folder like below:

    msiexec /a f:\plesk.msi /qb TARGETDIR=c:\tmp
  4. Copy the missing file or folder from C:\tmp

  5. Make sure that table with name locales exists in Plesk database:

    "%plesk_bin%"\dbclient --direct-sql --sql="select * from locales"
        id      active
        de-DE   true
        en-US   true
        es-ES   true
        fr-FR   true
        it-IT   true
        ja-JP   true
        ko-KR   true
        nl-NL   true
        pl-PL   true
        pt-BR   true
        ru-RU   true
        zh-CN   true
        zh-TW   true
  6. Default locale is set:

    "%plesk_bin%"\dbclient --direct-sql --sql="select * from misc where param like '%local%'"
        param   val
        admin_locale    en-US
        def_locale      en-US
    1. If the above did not help, replace the content of C:\Program Files (x86)\Parallels\Plesk\admin\plib\locales\en-US with one from a test environment.

Search Words


(1385) Logon failure: the user has not been granted the requested logon type at this computer


Logon failure: the user has not been granted the requested logon type at this computer.

The file index.php is part of Plesk distribution. It can not be run outside of Plesk environment

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