Hey there @Eject
Sorry for the delayed replied ( after you got it to work )
Well, just a quick explanation : the license key which is available for download from your account will only work with Kick 2 v1.05, the authorization system have changed with v1.1.0, it's happening online now, you need to register the plugin with your S.A credentials. From your account you can now also manage your machines authorization.
There's more info about it here ( it was related to the Beta dev. but the information applies to latest v1.10 )