This can happen with any of our software products. It usually means that either you do not have a token installed into the update plugin, or your token is not currently valid. You can see the token by looking at your profile. It must be entered into the plugin. If it is set correctly and you get an error, please check that you have a current subscription. For more details, see the Remository User Manual installation instructions - the plugin setup applies to all products and only needs to be configured once