Unknown cipher in list: TLSv1

in downloader/lib/Mage/HTTP/Client/Curl.php

wijzig:

$this->curlOption(CURLOPT_SSL_CIPHER_LIST, 'TLSv1');

in:

if(isset($var)){

   $this->curlOption(CURLOPT_SSL_CIPHER_LIST, 'TLSv1');

}