API Request does not work anymore!

API
23 
 $gameName = htmlspecialchars($_POST['name1']);
 $channelsApi3 = 'https://api.twitch.tv/helix/games?name=';
 $clientId = 'xxx';
 $ch3 = curl_init();
 $apiVers3 = '&api_version=5';
 $uri3 = '&redirect_uri=https://smartsblog.optimal-options.de/';
 
 curl_setopt_array($ch3, array(
    CURLOPT_HTTPHEADER => array(
       'Client-ID: ' . $clientId,
'Authorization: Bearer ' . $token
    ),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => $channelsApi3 . urlencode($gameName) . $apiVers3 . $uri3
 ));

 $response3 = curl_exec($ch3);