"Module PDO for MYSQL is not available - check your php configuration (php.ini)"

Hello.

I have exported sources files on the external server (before, I worked with wamp).
I deleted the file parametersLocation.php before to configure the database parameters.
When I click on OK, I have this message:
"Module PDO for MYSQL is not available - check your php configuration (php.ini)"

It seems that PDO module is necessary to use ProjeQtor.
But before, I have an older version of ProjecQtor and it worked good.

So my question is: Is PDO module is mandatory on the new version or the problem come from elsewhere?
(For information, when I read phpInfo file on the server, I have this:
PDO
PDO support enabled
PDO drivers sqlite

pdo_sqlite
PDO Driver for SQLite 3.x enabled
SQLite Library 3.6.23.1 )