Today, while working on a customer website, I ran into a Joomla error I hadn’t been confronted with before: Jerror unable to load database driver.
This particular error indicates that there’s something wrong with your database connection. While the other database error implies that you’ve supplied the wrong parameters, this error seems to indicate that you haven’t supplied any parameters at all.
When you receive this error, try the following.
Open your configuration.php file, and check the settings for your mysql database. You’ll have to check the following lines:
When checking these settings, you’ll probably notice that there’s no value for the setting. To correct this, provide the proper settings, save configuration.php and upload it to the server.
Note: This error is a rare one. It shouldn’t happen during a “normal” Joomla installation, but it could take place at occasions, e.g when restoring an Akeeba back-up to an unwilling server.