Error upon accessing domain hosting settings or file manager: Full path is undefined

Symptoms

One of the following errors is being displayed when opening domain hosting settings or file manager after Plesk upgrade:

PLESK_ERROR: Internal error: Full path is undefined.
Message Full path is undefined.
File Webspace.php
Line 374
Type PleskFatalException

Or:

PLESK_ERROR: ERR (3) [panel]: PleskFatalException: Full path is undefined.
file: C:\plesk\admin\plib\Webspace.php
line: 374
code: 0

Or:

PLESK_ERROR: Error: New configuration files for the Apache web server were not created due to the errors in configuration templates: Template processing failed: file = /usr/local/psa/admin/conf/templates/default/domainVhost.php, error = Template_Exception: No data. file: /usr/local/psa/admin/plib/Template/Processor.php line: 28 code: 0 Previous error: Template_Variable_Exception: No data. file: /usr/local/psa/admin/plib/Template/Variable/AbstractCachedData.php line: 67 code: 0. Search in KB

Cause

Entries from the hosting table were removed due to the Plesk upgrade failure.

Resolution

1. Connect to the server via SSH/via RDP.

2. Create Plesk database backup.

3. Restore hosting table from pre-upgrade dump.

On Linux it should be located at '/var/lib/psa/dumps/preupgrade.*, on Windows at"%plesk_dir%\mysql\backup"or (in case if the database provider was different fom MySQL) at"%plesk_dir%\admin\db"` folder.

In order to restore the table in MySQL, use the following command:

• On Linux:

  # gunzip /var/lib/psa/dumps/mysql.preupgrade.<version and time stamp>.dump.gz
  # MYSQL_PWD=cat /etc/psa/.psa.shadow mysql -u admin psa hosting < /var/lib/psa/dumps/mysql.preupgrade.<version and time stamp>.dump

• On Windows:

  C:\> "%plesk_dir%\Mysql\bin\mysql.exe" -uadmin -p<plesk_admin_password> -P8306 psa hosting < "%plesk_dir%\Mysql\Backup\psa-20131207194200.sql"