Plesk shows error: Fatal error: Call to a member function configuration()

Symptoms

• Plesk shows the following error:

  New configuration files for the Apache web server were not created due to the errors in configuration templates: Fatal error: Call to a member function configuration() on null in /usr/local/psa/admin/conf/templates/default/nginxDomainVhost.php.
  

• Apache syntax check shows the following error:

  # httpd -S
  httpd: Syntax error on line 353 of /etc/httpd/conf/httpd.conf: Syntax error on line 5 of /etc/httpd/conf.d/zz010_psa_httpd.conf: Syntax error on line 58 of /etc/httpd/conf/plesk.conf.d/server.conf: Could not open config directory /etc/httpd/conf/plesk.conf.d/ip_default: No such file or directory
  

• Apache has been reinstalled manually. The following can be found in
/var/log/yum.log
:

  Nov 08 17:47:26 Erased: httpd-2.4.6-40.el7.centos.4.x86_64
  Nov 08 17:47:26 Erased: httpd-tools-2.4.6-40.el7.centos.4.x86_64
  ....
  Nov 11 18:01:36 Installed: httpd-tools-2.4.6-40.el7.centos.4.x86_64
  Nov 11 18:01:36 Installed: httpd-2.4.6-40.el7.centos.4.x86_64
  

• Missing value for
httpd
component in Plesk database:

  MariaDB [psa]> SELECT `ServiceNodeEnvironment`.* FROM `ServiceNodeEnvironment` AS `ServiceNodeEnvironment` WHERE (`serviceNodeId` = '1' AND `section` = 'componentsPackages' and name='httpd');
  
  +---------------+--------------------+-------+-------+
  | serviceNodeId | section            | name  | value |
  +---------------+--------------------+-------+-------+
  |             1 | componentsPackages | httpd |       |
  +---------------+--------------------+-------+-------+
  

Cause

Plesk cannot determine the new Apache installation.

Resolution

1. Update Plesk component list by going to Tools & Settings > Server Components > Refresh

2. Rebuild Apache configuration files:

   # plesk repair web -y