gidmakus / What am i doing wrong

<?php session_start();
include('includes/config.php');

//$query="select * from motor_ins_check where insurance_company ='$_SESSION[org]';
$result = $mysqli->query(CALL clientele('$_SESSION[org])') or die($mysqli->error.__LINE__);

$arr = array();
if($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        $arr[] = $row;
    }
}
# JSON-encode the response
$json_response = json_encode($arr);

// # Return the response
echo $json_response;
?>