Finally i found the solution, in core/includes/coreFunctions.class.php
i tried changes this lines :
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch...