- Plesk 12.0 for Linux
- Plesk 12.5 for Linux
The Plesk Home page shows a blank page or "500 Internal Server Error".
The logfile /usr/local/psa/admin/logs/panel.log contains the following message:
CONFIG_TEXT: 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.
The Plesk Firewall extension is corrupted.
Re-install the Plesk Firewall extension.
Using Plesk installer web interface
- Go to https://your_ip_address:8447 or use your hostname instead. This will open Plesk installer.
- Select Plesk Firewall extension component for installation and continue.
- If it is marked as installed, remove it and install again.
Using SSH connection
Connect to a Plesk server via SSH.
Run the command command:
# /usr/local/psa/admin/bin/autoinstaller --select-release-current --install-component psa-firewall