Article ID: 123131, created on Oct 11, 2014, last review on Mar 22, 2016

  • Applies to:
  • Plesk 12.5 for Linux
  • Plesk 12.0 for Linux


Plesk home page shows a blank page or 500 Internal Server Error.

The log file /usr/local/psa/admin/logs/panel.log contains the following output:

03-Jul-2014 16:28:26 Europe/Berlin] PHP Fatal error:  require_once(): Failed opening required 'modules/firewall/FwConfigurator.php' (include_path='/usr/local/sb/include:/opt/psa/admin/plib:/opt/psa/admin/externals:/usr/local/sb/include:/usr/local/sb/include/PEAR') in /opt/psa/admin/application/admin/controllers/HomeController.php on line 104

`FwConfigurator.php` is a part of Plesk firewall module, but this was not properly installed.


A corrupted Plesk Firewall extension.


Install the extension using the following command:

# /usr/local/psa/admin/bin/autoinstaller --select-release-current --install-component psa-firewall

Search Words

Plesk is unavailable


403 Forbidden nginx


white page


php broke plesk

adding database gives white page

Blank page when adding database

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