This error shows when I hit Extension manager in the Magento Admin. How do I fix it? 

```
Command "show" failed: In RemoteFilesystem.php line 742: The 'https://repo.wyomind.com/packages.json' URL required authentication. You must be using the interactive console to authenticate show [--all] [-i|--installed] [-p|--platform] [-a|--available] [-s|--self] [-N|--name-only] [-P|--path] [-t|--tree] [-l|--latest] [-o|--outdated] [--ignore IGNORE] [-m|--minor-only] [-D|--direct] [--strict] [-f|--format FORMAT] [--] [<package> [<version>]]

```