Fatal error: Uncaught Error: Undefined constant "DEFAULT_MD5_SALT" in D:\xampp\htdocs\_0\01_WebApps\Webftp\netftp_php561\includes\StonePhpSafeCrypt_testconfig.php:4 Stack trace: #0 {main} thrown in D:\xampp\htdocs\_0\01_WebApps\Webftp\netftp_php561\includes\StonePhpSafeCrypt_testconfig.php on line 4