UploadFile::getErrorMsg PHP Method

    public function getErrorMsg()
    {
        return $this->error;
    }

 public function localupload()
 {
     $upload = new UploadFile();
     $upload->allowExts = array("pem");
     $upload->uploadReplace = 1;
     $firstLetter = substr($this->token, 0, 1);
     $upload->savePath = "./uploads/" . $firstLetter . "/" . $this->token . "/";
     if (!file_exists($_SERVER["DOCUMENT_ROOT"] . "/uploads") || !is_dir($_SERVER["DOCUMENT_ROOT"] . "/uploads")) {
         mkdir($_SERVER["DOCUMENT_ROOT"] . "/uploads", 511);
     }
     $firstLetterDir = $_SERVER["DOCUMENT_ROOT"] . "/uploads/" . $firstLetter;
     if (!file_exists($firstLetterDir) || !is_dir($firstLetterDir)) {
         mkdir($firstLetterDir, 511);
     }
     if (!file_exists($firstLetterDir . "/" . $this->token) || !is_dir($firstLetterDir . "/" . $this->token)) {
         mkdir($firstLetterDir . "/" . $this->token, 511);
     }
     if (!file_exists($upload->savePath) || !is_dir($upload->savePath)) {
         mkdir($upload->savePath, 511);
     }
     if (!$upload->upload()) {
         $error = 1;
         $msg = $upload->getErrorMsg();
         $this->error($msg);
         exit;
     } else {
         $error = 0;
         $info = $upload->getUploadFileInfo();
         $this->siteUrl = $this->siteUrl ? $this->siteUrl : C("site_url");
         $msg = $this->siteUrl . substr($upload->savePath, 1) . $info[0]["savename"];
         $this->addCert($info[0]["key"], $msg);
     }
 }