SelectOptionsConnector and MySQLi shows Internal ServerError

Hi all,

i have a problem with selectOptionsConnector.
If i use MySQL connection the following code runs perfectly but if i use MySQLi i get an Internal Server Error (500). What is my problem? Can anybody explain it pls.?
Both ways are in the Code below.
The logFile shows only Date and Time and no more informations :frowning:

<?php
require_once("../connector/options_connector.php");

//$res=mysql_connect("DBHOST","DBUSER","DBPASS");
//mysql_select_db("DBdatabase");
//$data = new SelectOptionsConnector($res, "MySQL");

$res = new mysqli('DBHOST','DBUSER','DBPASS','DBdatabase'); 
$data = new SelectOptionsConnector($res, "MySQLi");
$data->enable_log('log.txt');
$data->render_table("ac","acId","clientId, acDescription");
?>

Thanks in advance.
Kind regards,
Bjoern

You need to include the related adapter

require_once("../connector/db_mysqli.php");

Thanks you very much for your fast help Stanislav.