Fatal error: Uncaught Exception: Request error: attribute "Response_527793.527793X119X960962 is not defined. in C:\xampp\htdocs\JsonRPCClient.php:161 Stack trace: #0 C:\xampp\htdocs\auswertung.php(28): jsonRPCClient->__call('export_statisti...', Array) #1 {main} thrown in C:\xampp\htdocs\JsonRPCClient.php on line 161

<?php
  include 'functions.php';
  define( 'LS_BASEURL', 'https://127.0.0.1/limesurvey-master');
  define( 'LS_USER', 'admin' );
  define( 'LS_PASSWORD', '******' );
  $myJSONRPCClient = new jsonRPCClient( LS_BASEURL.'/index.php/admin/remotecontrol' );
  $sSessionKey= $myJSONRPCClient->get_session_key( LS_USER, LS_PASSWORD );
 
  $sResult = $myJSONRPCClient-> export_statistics($sSessionKey,527793,"pdf");
  $sResult = base64_decode($sResult);
 
  file_put_contents("auswertung/survey.pdf", $sResult);
?>

...
require_once 'jsonrpcphp/JsonRPCClient.php';
 
define( 'LS_BASEURL', 'https://www.myServer.de/limesurvey');  // adjust this one to your actual LimeSurvey URL
define( 'LS_USER', 'myUser' );
define( 'LS_PASSWORD', 'myPassword' );
 
// the survey to process
$survey_id=886223;
// instantiate a new client
$myJSONRPCClient = new \org\jsonrpcphp\JsonRPCClient( LS_BASEURL.'/index.php/admin/remotecontrol' );
// receive session key
$sessionKey= $myJSONRPCClient->get_session_key( LS_USER, LS_PASSWORD );
 
if(is_array($sessionKey))
{
    header("Content-type: application/json");
    echo json_encode($sessionKey);
    echo '<br />This is another test with sesssion key.<br />';
    die();
}
else if($sessionKey) // Is a valid session
{
/* Get the responses */
  $sResult = $myJSONRPCClient-> export_statistics($sessionKey,$survey_id,"pdf");
  $sResult = base64_decode($sResult);
 
  file_put_contents("survey.pdf", $sResult);
  }
 
 
  // Release the session key
  $myJSONRPCClient->release_session_key( $sSessionKey );
...