The driver PDO pour Oracle is OCI, but into the file manager.php, you change le value oci with oracle and my connection failed.

I have changed this:

protected static $driverMap = array('oci' => 'oracle');
by
protected static $driverMap = array('oci' => 'oci');

but it's not a good solution for the old solution

Show my capture for view the name.

Thank's