Plesk shows error on Home page: New configuration files for the Apache web server were not created

Symptoms

The following error is shown on the Home page or in Domains > example.com page:

PLESK_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/domainForwarding.php, error = Template_Exception: No data. file: /usr/local/psa/admin/plib/Template/Processor.php line: 27 code: 0 Previous error: Template_Variable_Exception: No data. file: /usr/local/psa/admin/plib/Template/Variable/AbstractCachedData.php line: 65 code: 0. The error message containing the detailed error descriptions was sent to you by e-mail. Please resolve the issues and click here to generate broken configuration files once again or here to generate all configuration files.

Actually configuration files are correct: Apache is up and running and websites are accessible.

Apache configuration test is being passed:

# apachectl configtest
Syntax OK

Cause

Database contains non-actual records about already solved errors.

Resolution

Solution 1. Use Plesk web interface.

1. Login into Plesk UI.
2. Navigate to the tab Extensions > My Extensions > Webserver Configurations Troubleshooter.
   
3. Enter the domain name in a search, choose all files related to domain example.com and click Rebuild domain's configuration files > Selected.
   

Solution 2. Use command line.

1. Connect to the server using SSH.

2. Backup Plesk database.
3. Update orphan records via MySQL query:
   

   # MYSQL_PWD=`cat /etc/psa/.psa.shadow` mysql -u admin psa -Ne"update Configurations set Configuration.status = 'ok' where Configurations.status <> 'ok';"