When installing or updating the plugin you get the error: Could not create directory

That error indicates that WordPress is unable to create the directory to install the plugin in the /wp-content/plugins folder.

This error is not related specifically to this plugin at all.

Usually this error is caused by a server permissions error. WordPress does not have the permission to create the directory for some reason.

Try changing the wp-content/plugins folder permissions to 755. You may need to contact your hosting provider if you continue to experience problems.