401 Error by this Code?

API
12

thanks but this worked yet:

<?php

 $channelsApi = 'https://api.twitch.tv/helix/streams?user_login=';
 $channelName = 'tracepaladinxxl';
 $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);
$bX = strlen($response);
if($bX > "27") {
echo "Stream is Online";
}

else {
echo "Stream is Offline";
}

echo"</br>";


var_dump(json_decode($response, true));
echo"</br>";echo"</br>";echo"</br>";

echo "$response";
echo"</br>";echo"</br>";echo"</br>";

echo"</br>";echo"</br>";
echo "$bX";

?>