Hello
First of all: we love this plugin, we think that it should get a great investment because it is so powerful and well done than this plugin could easily become an example of good practices for security.
Our problem: We needed to uninstall and then reinstall the plugin. When trying to register the plugin again under this same account, it opens this same page, proceeds to register (you can see the key listed) but when returning to the Wordpress the signs are still red as if it was not registered :(. If we try to register again then the error described at the title appears.
What can we do? Thanks in advance for kind response.