Getting errors on following plugin installation


or link to image (here [Links visible only for registered users])
Getting below error and attaching screenshot of plugin for which getting same kind of error, please suggest how to install them ?
Installing Plugin: _ BeTheme Header Builder - BETA
What's new in Duplicate Post version 3.2.2:
Simple compatibility with Gutenberg user interface: enable "Admin bar" under the Settings — "Slug" option unset by default on new installations
Check out the documentation [Links visible only for registered users] — Please review the settings [Links visible only for registered users] to make sure it works as you expect.
Serving the WordPress community since November 2007. Help me develop the plugin and provide support by donating even a small sum [Links visible only for registered users].
Downloading installation package from http://api.muffingroup.com/plugins/download.php?plugin=mfn-header-builder…
Unpacking the package…
Installing the plugin…
The package could not be installed. The plugin contains no files.
Plugin installation failed.
Comments
this message could mean that your license key is used on more than one domain.
Please use this tool to manage your license keys:
http://forum.muffingroup.com/betheme/discussion/36219/cannot-register-deregister-your-license-key-use-this-tool#latest
thanks