Frequently Asked Question
PDO and PDO_MySQL libraries are required. You must enable them on the WordPress host.
If you use CPanel:
Enable the PHP extensions:
Or if your Web server is on Windows:
Edit php.ini and uncomment the line:
Or if your Web server is on Ubuntu:
sudo php5enmod pdo
sudo service apache2 reload
If you don’t have access to these commands, please contact the system administrator of your WordPress server.