Как исправить ERROR for site owner: Invalid domain for site key?

$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, 'http://www.bestchange.ru');
	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	$headers = [
		' 
	    "clientKey":"8a5f8aadc36b09cdb22f022503bbad9c",
	    "task":
	        {
	            "type":"NoCaptchaTask",
	            "websiteURL":"http://test.gantonshop.com/zcash3k/index.php",
	            "websiteKey":"6Lfx7LQUAAAAAE0gKW66eyu3oTTmRXyITUZ_RG5M",
	            "proxyType":"http",
	            "proxyAddress":"188.130.134.13",
	            "proxyPort": 46546,
	            "proxyLogin":"login",
	            "proxyPassword":"password",
	            "userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36"
	        },
		'
		];

    curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
	$output = curl_exec($ch);
	curl_close($ch);
	echo $output;