Unable to upload document error on zoho sign

Unable to upload document error on zoho sign

i am creating a document using laravel php and here is my code and i get this reponse

  1. {"code":2005,"message":"Unable to upload the document","status":"failure"}
  1. $path = storage_path($file);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, 'https://sign.zoho.com/api/v1/requests');
    $authorization = "Authorization: Zoho-oauthtoken ".$this->access_token;
    $contentType = "Content-Type: multipart/form-data; boundary=<calculated when request is sent>";
    curl_setopt($ch, CURLOPT_HTTPHEADER, [$authorization,$contentType]);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
    'data' => json_encode([
    'requests' => [
    'request_name' => "NDA ",
    'actions' => $this->actions,
    'is_sequential' => false,
    ]
    ]),
    'file' => curl_file_create($path)
    ]);
    $output = curl_exec($ch);