401 Error by this Code?

API
9

So this code does replay data:
<?php

 $channelsApi = 'https://api.twitch.tv/kraken/users?login=';
 $channelName = 'traceapaldinxxl';
 $clientId = 'xxx';
 $ch = curl_init();
 **$apiVers = '&api_version=5';**
 
 curl_setopt_array($ch, array(
    CURLOPT_HTTPHEADER => array(
       'Client-ID: ' . $clientId
    ),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => $channelsApi . $channelName . **$apiVers**
 ));
 
 $response = curl_exec($ch);

if($response == true) {
echo "Stream is Online";
}

else {
echo "Stream is Offline";
}

echo"</br>";

var_dump(json_decode($response, true));

?>